Introduction

General description

Additional information: 

Introduction to Annelida-terrestrial Oligochaeta, Aphanoneura and Polychaeta.

Part 1: Aphanoneura and Polychaeta

Class APHANONEURA

Two families whose sister-group relationship is supported by morphological and molecular data (Purschke and Hessling 2002, Marotta et al. 2003, Struck and Purschke 2005). Similar to clitellates in lacking parapodia, being hermaphroditic, and laying cocoons secreted by a specialized area of the body wall, features that for long time have suggested their inclusion in the Oligochaeta, either as the most primitive group or as a secondarily simplified, derived branch. However, the possession of nuchal organs (Fauchald and Rouse 1997, Hessling and Purschke 2000), the construction of the central nervous system (Purschke and Hessling 2002) and pharynx (Bunke 1967), and the ultrastructure of spermatozoa (Bunke 1985, Bunke 1986, Marotta et al. 2003) exclude any close affinities with clitellates. Molecular studies (Rota et al. 2001, Struck and Purschke 2005, Rousset et al. 2007) indeed indicate that the aphanoneurans are not closer to clitellates than any other annelid grouping.

Family Aeolosomatidae

Cosmopolitan family of minute worms living interstitially or epibenthically mostly in freshwater habitats. Some also occur in damp soils and forest litter; others (Hystricosoma, Aeolosoma spp.) live epizoically on freshwater crayfish; one species is marine. Represented in Europe by 3 genera (Aeolosoma, Hystricosoma, Rheomorpha) and about 25 species. Most Aeolosoma species are recognizable by possessing scattered epithelial “oil glands” that are red, green or yellow in vivo, dorsal and ventral bundles of capillary chaetae, and a ciliated prostomium used for locomotion and suction-feeding. Hystricosoma moves by muscular contractions of the body wall, has only sigmoid chaetae and those of each dorsal bundle emerge as two parallel rows running in opposite directions; the orange-red oil glands are concentrated around the dorsal chaetal bundles. Rheomorpha has pale greenish oil glands and bears adhesive epidermal papillae in place of the chaetae and at the tip of the bilobed pygidium. Testes develop in both anterior and posterior segments; mature sperm are released through the nephridia and transferred into 2-5 pairs of simple ventral epidermal invaginations of the partner. Eggs are laid inside cocoons secreted by a glandularized epithelium that extends for one segment laterally and ventrally beneath the single mature ovary; the unpaired female pore opens in the middle of this pseudo-clitellum. Sexual reproduction, however, is rarely observed, reproduction most often implies paratomic formation of chains of 2-8 zooids.

Family Potamodrilidae

Monotypic family, with one species in Europe (Potamodrilus fluviatilis) and one undescribed congener (Potamodrilus sp.) in North America (Strayer 2001; Roanoke River, Virginia, acc. to Smithsonian Museum Collection). The minute body has no epidermal oil glands and comprises only six chaetigerous segments, each bearing paired dorsolateral and ventrolateral couples of hair chaetae (one long and one short). Locomotion is due to a three-lobed ventral ciliary field on prostomium, but ventral longitudinal body wall muscles allow rapid curling of the body. Pygidium narrow, funnel-shaped, adhesive; anus opening subterminally. Two paired testes, discharging through paired gonoducts into a common midventral furrow. Paired ovaries, female pore unpaired, surrounded by a ventral epidermal glandular field (pseudo-clitellum). Seminal receptacle unpaired, opening just in front of female pore. No asexual reproduction. Mostly recorded from the bottom of large rivers, but also found on the shore of the Baltic Sea and, in large numbers, in the oligotrophic Lake Stechlin, Germany (Collado et al. 1999).

Class POLYCHAETA

Family Nerillidae

A family of minute worms endowed with small cephalic palps and antennae and cirri along the body and on the pygidium. They comprise 17 genera and about 48 species, mostly marine interstitial, occurring worldwide from the intertidal to abyssal depths (Worsaae and Kristensen 2005). One species, Troglochaetus beranecki Delachaux, 1921, has been found exclusively in subterranean freshwater habitats (phreatic and hyporheic sands and pebbles, caves, wells and springs), even at high altitude and in formerly glaciated areas, across a vast area of Europe (from Finland to the Alps, see Särkkä and Mäkelä 1998, and from France to Romania) and (with conspecific populations?) at several locations of the USA (Colorado, Montana, Virginia, Alabama, New Hampshire, Pennsylvania, Ohio; Strayer 2001 and Smithsonian Museum Collection). It is believed that its ancestors were members of psammon in epicontinental seas, from which the species, possibly before continental drift was well under way, entered the groundwater system.

Family Parergodrilidae

This family of unclear phylogenetic position comprises only two species: the marine littoral mesopsammic Stygocapitella subterranea and the truly terrestrial Parergodrilus heideri (Rota et al. 2001​). The latter inhabits the litter and organic soil horizons of a variety of inland woodlands (beech, conifer, holm oak) and occasionally, waterlogged habitats (Rota et al. 2010). Until recently P. heideri appeared restricted to Europe, but findings in the wild have been reported from Korea (Dózsa-Farkas and Hong 2010) and the USA (Minnesota and Wisconsin; Schlaghamerský and Frelich 2012). The possibility of the Parergodrilidae being close to the Orbiniidae has been proposed in some recent molecular analyses, but support was significant only in two such studies (Bleidorn et al. 2003, Struck et al. 2008).

Family Serpulidae

A worldwide-distributed family of polychaetes building tubes of calcium carbonate, comprising about 350 species, nearly all marine. Marifugia cavatica Absolon & Hrabě, 1930 is the sole member living in fresh water and is a stygobiont, endemic to the European alpine-dinaric karst. Molecular phylogenetics places M. cavatica as sister taxon to a clade of brackish-water Ficopotamus species, suggesting that the transition to the subterranean environment occurred via ancestral marine shallow water to intertidal or estuarine species (Kupriyanova et al. 2009). From intense cave biology research in Croatia, Marifugia is capable of withstanding prolonged periods outside the water but was never recorded in brackish conditions (Branko et al. 2012).

Polychaeta incertae sedis

Hrabeiella periglandulata Pižl & Chalupský, 1984 is, along with the parergodrilid Parergodrilus heideri Reisinger, 1925, the sole truly terrestrial non-clitellate annelid (Rota 1998, Rota et al. 2001). It has been collected in woodland and grassland sandy soils throughout the European continent, from Spain to Romania and from Italy to Sweden, and has been recently reported from Korea (Dózsa-Farkas and Hong 2010). Its phylogenetic position is still enigmatic and since originally described, the taxon has remained unassigned to family. In the Fauna Europaea database it has been placed in the Parergodrilidae for merely database purposes, with such position corroborated neither by morphological nor by molecular data (Rota 1998, Rota et al. 2001).

Part 2: Oligochaeta

Class OLIGOCHAETA

Family Acanthodrilidae

Allochthonous megadrile family with a very wide geographic distribution, most probably non monophyletic. Endemic taxa can be found throughout the southern continents, plus North and Central America (Buckley et al. 2011). The male reproductive system includes primarily one or two paired prostates, opening separately on segment 17 and/or 19, while the single pair of male pores is generally located on 18 (acanthodriline arrangement). In the taxa showing a microscolecine reduction, the posterior prostates have disappeared and the male pores tend to be found close to the prostate pores in 17. There are sexprostatic species as well (i.e. prostates in 17, 18, 19) or the prostates can be shifted backward (as in many Diplocardia species). Each of the acanthodriline/microscolecine/balantine conditions involves not only the position of the prostate pores but also the position of the spermathecae, which are strictly connected. The microscolecine condition, combined with a weak gizzard and vesiculated nephridia, is observed in Microscolex, a genus with endemics in South America, South Africa and New Zealand. Two species, M. dubius and M. phosphoreus, possibly native to South America, are synanthropic and have been introduced worldwide. The former has been recorded in Europe only from countries bordering the Mediterranean (Portugal, Spain, France, Italy, Albania and Greece). The latter, notable for its bioluminescence, has shown a larger invasive capacity and adaptability: in Poland it has been found in high abundance in coal mines at 230 m below the surface, and in central Hungary the species was able to survive outdoor winter temperatures of -20°C (Skowron 1928, Csuzdi 1986; see Rota 2009).

Family Ailoscolecidae

Monotypic megadrile family endemic to southwestern France. They were regarded as possibly close to the North American Komarekionidae (Sims 1980, Qiu and Bouché 1998c), particularly because of having the male pores in segment 22 and prostate-like glands associated with the tubercula pubertatis. However, molecular evidence excludes any such kinship and places the deep-soil dwelling Ailoscolex lacteospumosus Bouché, 1969 within the Hormogastridae (James and Davidson 2012).

Family Criodrilidae

Monotypic megadrile family indigenous to the western Palaearctic. Primitively aquatic, Criodrilus lacuum Hoffmeister, 1845 is characterized by a quadrangular body section, the lack of gizzards and other gut specializations, the long clitellum, absence of spermathecae and tubercula pubertatis, and the production of long, horn-shaped spermatophores and long cocoons. Molecular data place it as sister taxon to the Hormogastridae and Lumbricidae (James and Davidson 2012). Although frequently parthenogenetic and capable of regeneration, as well as of living in aquaria for decades, it has never been recorded in the British Isles and Scandinavia and has only occasionally been introduced to other continents (e.g. the Americas; arrived in Baltimore, Maryland before 1900, McKey-Fender and MacNab 1953; recorded in Brazil rice fields, Knäpper and Porto 1979). Widely distributed in Europe and common all around the Mediterranean, its physiology and behaviour were first made popular by Lazzaro Spallanzani (Rota in prep.). Records appear nowadays scantier due to climate and habitat changes. Molecular taxonomy should ascertain whether, given the broad geographic distribution, some populations have achieved the species or subspecies status (C. ochridensis Georgevitch, 1950 from Lake Ochrid, Macedonia, is recorded in the FaEu database as a separate species).

Family Enchytraeidae

Microdrile family with worldwide distribution, Polar regions included. The Enchytraeidae are well separated from all other oligochaetes by a set of somatic (chaetae short and simple-pointed, emerging from a generally smooth body wall; prostomium pierced by a coelomic pore; pharyngeal glands as conspicuous masses arranged pairwise in segments 4-6, with ventral strands of ducts directed to the roof of pharynx; holonephridia with postseptal loops more or less anastomosed to form canalized compact bodies; coelomocytes abundant) and reproductive features (spermathecae opening in segment 5; testes in 11, ovaries in 12, with respective paired pores in 12 and 13; preseptal sperm funnel glandular, opposite end of vas deferens generally surrounded by a copulatory cushion). So far, the more inclusive molecular phylogenetic analyses (e.g. Erséus et al. 2010, James and Davidson 2012) have not confirmed any of the classical or recent hypotheses relating these worms to other microdrile families (most notably the Propappidae) or to the megadriles. The history of lineages within the family is also far from resolved, but some relationships appear well supported (Erséus et al. 2010), e.g. the 'achaetine' genera (sensu Černosvitov 1937) stemming out basally from the rest of the family, or the three genera possessing two types of coelomocytes (Fridericia, Hemifridericia and Buchholzia) forming a monophyletic clade.

The vernacular name of the family, pot-worms (fr. Greek 'en-chytra' = in flowerpot), does not reflect the great ecological diversity of the group, which, although most represented in terrestrial soils (Fig. 1), has also colonized freshwater and marine deposits (littoral, sublittoral and profundal), acid boglands, the snow-cover and the ice of glaciers, sewage beds, and other habitats where moisture conditions and food supply are suitable. Due to their sensitivity to hypoxia and desiccation, enchytraeid populations reach their greatest abundance and biomass in cold to temperate moist climates. Moreover, because these worms have no vascularization of the body wall, oversized species (> 30 by 2-3 mm) are confined at latitudes where oxygen availability rarely becomes a limiting factor, while moisture and nutrients are always abundant (Rota 2001). Nevertheless, many species tolerate low soil moisture during short periods and taxonomic richness, if properly investigated, can be equally high in hot (e.g. in Mediterranean forests, see Rota et al. 2014b; or in the Mata Atlantica of Brazil, see Römbke et al. 2005) as in cold climates. Currently over 700 species, classified in about 30 genera, are regarded as valid in the world (Schmelz and Collado 2015), but the global inventory is very far from complete.

Figure 1.  

Enchytraeid species crawling through Quercus ilex leaf litter.

About half of the currently accepted inland species have their type localities in Europe, where collecting and taxonomic work has always been comparatively intense. The northernmost latitudes of the Holarctic, particularly Beringia (refs. in Christensen and Dózsa-Farkas 2005), as well as certain regions and habitats of Brazil (refs. in Christoffersen 2009, Schmelz et al. 2013) follow, in terms of species discoveries. In the rest of the New World, a diverse fauna is documented for the forests and glaciers on the North Pacific coast (refs. in Schlaghamerský 2014), and two peculiar life forms appear exclusive to the southeastern US (the freshwater Barbidrilus paucisetus Loden & Locy, 1981) and the Caribbean (the epizoic Pelmatodrilus planariformis Moore, 1943), but huge areas of both Americas remain completely unexplored. Likewise, we have only hints of the probably high endemicity and diversity of tropical and temperate Africa, as well as of southern and eastern Asia and Australasia, and recent surveys in China (refs. in Wang and Cui 2007, Lian et al. 2011) and Korea (Dózsa-Farkas and Hong 2010, Christensen and Dózsa-Farkas 2012, Dózsa-Farkas et al. 2015) point to complex biogeographical relationships among the major world regions. The geographical sampling bias is only one of the reasons for the incompleteness of the global inventory. The number of taxonomists working on this ubiquitous family has always been low, both because of practical difficulties in sampling, and because species identification and differentiation traditionally involve the observation of live specimens (marine forms are generally less difficult to identify in a preserved state).

The correct evaluation of species taxonomic status and distribution is a fundamental prerequisite in assessing biodiversity in any geographical region. Both these aspects are still in a state of uncertainty for many European components of the family. According to the published records, a fair number of species would appear Holarctic or even cosmopolitan. However, besides the mentioned sampling biases, many records date back to a time when identifications were based on either ambiguous diagnoses and/or inadequate examinations. Since the mid-1990s, there has been an effort to better characterize the species through an enlarged and univocal set of features (e.g. Rota 1994a, Rota 1994b, Rota and Healy 1994, Rota 1995, Rota et al. 1998, Rota and Healy 1999, Schmelz 2003, Schmelz and Collado 2010, Rota 2013b), ultimately implying the combined use of living and fixed material (e.g. Rota and Healy 1999, Schmelz 2003, Rota 2013b, Rota 2015). This effort has clarified the identity of several common species previously regarded as extremely variable, and has provided a foundation, often on a continental scale, for subsequent studies of species diversity and endemicity. Furthermore, in the last decade the application of molecular methods to species delimitation has started uncovering some cryptic species (e.g. Cech and Dózsa-Farkas 2005, Martinsson and Erséus 2014, Martinsson et al. 2014, Martinsson et al. 2015, Dózsa-Farkas and Felföldi 2015), while allowing the re-evaluation of the status of some taxa currently treated as distinct species (e.g. Cech et al. 2012, Dózsa-Farkas et al. 2012). In the first version of the Fauna Europaea database in 2003, the family was represented by 233 species in 19 genera. Since then, some 40 new species have been described from our continent.

Family Eudrilidae

The Eudrilidae, a megadrile family of tropical West and East Africa, are separated from all other earthworms by their specialized “spermathecal systems”, which are found posterior to the testis segments and are connected to the oviducts. One species, Eudrilus eugeniae, known in the fish bait market as the “African night crawler”, is a native to West Africa that has become pantropical at low altitudes. It is a relatively large earthworm that under constant high temperatures (25°–30°C) grows extremely rapidly, is prolific and thus exploited for protein production, composting and agriculture. Its main disadvantages are sensitivity to handling and its narrow temperature tolerance (it grows very slowly at 15°C and dies below 5°C; Domínguez et al. 2001, Domínguez and Edwards 2011). Outdoor vermiculture is therefore limited to tropical and subtropical regions, while in temperate regions the species can only survive in greenhouses. Beddard (1906) recorded it in Kew from soil in a Wardian case brought from British Guiana (Guyana), and Csuzdi et al. (2008) found it in a tropical plant nursery in Hungary. No other records are known from Europe, except for laboratory cultures (Spain, Germany).

Family Glossoscolecidae

Megadrile earthworms indigenous to the tropical forests of South and Central America, with clitellum beginning near segment 14, endowed with tubercula pubertatis. Male pores either inconspicuous or within copulatory chambers. Dorsal pores lacking, oesophageal gizzard in segment 6; extramural calciferous glands in some or all of segments 7-14; typhlosole present. Holoic with nephridial bladders in intestinal region. Spermathecae adiverticulate, in front of the gonadal segments. The family in this classical acception harbours 200 species and 25 genera, but molecular phylogeny has recently revealed it as polyphyletic (James and Davidson 2012), consisting of a Glossoscolecidae sensu stricto clade (Glossoscolex, Glossodrilus, Righiodrilus, Fimoscolex etc., morphologically sharing paired calciferous glands at 11/12, male pores conspicuous and usually with muscular ejaculatory bulbs, typhlosole consisting of a compact lamina with a complex folding) and a reestablished Rhinodrilidae Benham, 1890 comprising all other genera (James 2012). Type species of the latter is the endogeic Pontoscolex corethrurus, which has been transported widely by man and has colonized most disturbed soils in the tropics (Lavelle et al. 1987). In Europe it has been recorded in greenhouses in Germany, Finland and the UK. The only record around the Mediterranean is by Michaelsen (1938), from a thermal spring locality in northern Algeria (Hamman Righa, material collected by F.E. Beddard).

Family Hormogastridae

Megadrile family endemic to the western Mediterranean region, whose distinctness from the common European earthworms (Lumbricidae) was first recognized by Francesco Redi (Rota 2011​). They presently comprise four genera (Hormogaster Rosa, 1887, Hemigastrodrilus Bouché, 1970, Vignysa Bouché, 1970, Xana Díaz-Cosín et al. 1989) and 30 nominal species and subspecies. Their close affinities with Lumbricidae, Ailoscolecidae, Criodrilidae and Lutodrilidae (to form the Lumbricoidea s.s.) to the South African Microchaetidae (Omodeo 2000) is supported by molecular phylogeny (James and Davidson 2012). The Hormogastridae are characterized by the lack of dorsal coelomic pores, the possession of two or three anterior (postpharyngeal) gizzards, and the clitellum beginning just before the male openings, which are located near 15/16. Body size in these worms, particularly in the genus Hormogaster, is mostly large or even very large, reaching up to 90 cm in length and 100 g in weight (Omodeo and Rota 2008). Because of their endogeic habits, physiological adaptation to prolonged periods of drought (thanks to a long diapause), and low vagility, the Hormogastridae have often being the subject of biogeographical studies addressing the complex climatic history and land evolution of the western Mediterranean (Omodeo 1956, Bouché 1972, Bouché 1983, Omodeo 1984, Omodeo and Rota 1987, Cobolli Sbordoni et al. 1992, Qiu and Bouché 1998b, Omodeo and Rota 2008, Novo et al. 2011, Novo et al. 2014). The phylogenetic relationships within the family are hardly recognized being generally hampered by inconsistent patterns of morphological differentiation (e.g. Novo et al. 2012a). Molecular studies (Cobolli Sbordoni et al. 1992, Novo et al. 2009, Novo et al. 2010, Novo et al. 2011, Novo et al. 2012b, Novo et al. 2014) have also pointed out the occurrence of highly divergent cryptic lineages within certain morphospecies (e.g. H. pretiosa, H. elisae), despite the low geographical distance between populations, and a much lower genetic differentiation within and between other morphospecies separated by a long geographical distance. Interestingly, the biogeographical analysis carried out by Novo et al. 2014 on the easternmost areas of the family's range has shown a correspondence between the patterns of diversification of the individual hormogastrid species and the archipelago-like relationships between the earthworm faunal assemblages of Tyrrhenian districts formerly illustrated by Omodeo and Rota (1987), Rota (1992), Omodeo and Rota (2008). Furthermore, H. elisae appears as a relatively independent monophyletic species complex occupying a restricted area in central Spain (Novo et al. 2014), whilst the Sardinian-Franco-Iberian morphospecies H. pretiosa (sensu Cobolli Sbordoni et al. 1992) has turned out to be polyphyletic, with the French populations (= H. gallica Rota, 1994) belonging to a separate clade, which justifies the high values of allozymic divergence measured by Cobolli Sbordoni et al. (1992). The high diversity of species of Hormogaster in the southern Pyrenées, ventured by Qiu and Bouché (1998a) on the basis of not always clearcut morphological evidence, was dismissed as "H. pretiosa species complex" in the previous version of FaEu database, with the taxonomic comment: "Qiu and Bouché (1998a) recognized as many as 11 separate new species in material from Southern Pyrenées (H. riojana, H. ireguana, H. eserana, H. huescana, H. lleidana, H. multilamella, H. arenicola, H. catalaunensis, H. sylvestris, H. najaformis, H. castillana)". However, DNA sequence data from multiple markers (Novo et al. 2011, Novo et al. 2012b) confirm the genetic diversification and taxonomic validity for most of those species. The discovery of H. joseantonioi Fernández-Marchán et al. 2014 in Aragón, and its placement as sister taxon of H. elisae, further supports the anticipation that several representatives of this family await discovery in unexplored regions of suitable habitat.

Family Lumbricidae

Megadrile family endemic to the Holarctic (Figs 2, 3), occurring naturally from the central USA to central Asia, with its highest diversification in Europe where it comprises at least 450 valid species. Major hotspots of endemism are located in the Franco-Iberian area, the Carpathian Basin, the Caucaso-Anatolian area. The family is diagnosed by having the clitellum starting never before segment 19 and the stomach and gizzard lying behind the oesophagus in 15-16 and 17-18 (or more), respectively; coelomic pores open middorsally (dorsolaterally paired in Diporodrilinae), the tubercula pubertatis are located before (Spermophorodrilinae) or within the clitellum (Lumbricinae and Diporodrilinae), and the sexual pores open laterally between chaetae b and c (Lumbricinae and Diporodrilinae), or ventrally near chaeta b or between chaetae a and b (Spermophorodrilinae).

Figure 2.  

Epigeic lumbricid earthworms and their cocoons.

Figure 3.  

Specimens of Dendrobaena cognettii (Michaelsen, 1903), one of the smallest European earthworms (Lumbricidae), crawling around in a Petri dish.

The Lumbricidae are most closely related to the Hormogastridae, Ailoscolecidae, Lutodrilidae and Criodrilidae, all families endemic to our continent (James and Davidson 2012).

In the first version of the Fauna Europaea database in 2004, the family Lumbricidae was represented by 384 species classified in 32 genera and the three subfamilies mentioned above, following criteria that took into account classical views and well-grounded modern morpho-taxonomy. Molecular cladistic analyses focusing on earthworms had then just started and for about a decade phylogenetic reconstructions of the Lumbricidae would be hindered by restricted taxonomic sampling and/or the low signal of the chosen genes (Pop et al. 2003, Cech et al. 2005, Pop et al. 2005, Pop et al. 2007, Briones et al. 2009, Pérez-Losada et al. 2012). In any case, albeit limited (see review by Chang and James 2011), those studies repeatedly called attention to the heterogeneity of several genera (Allolobophora, Dendrobaena, Aporrectodea, Eisenia) as diagnosed by most authors on a morphological basis. More recently, using DNA data from multiple markers (with different evolutionary rates) and an extensive taxonomic sampling, Domínguez et al. (2015) have provided a comprehensive and quite robust molecular phylogeny of the family that (except for some nomenclatural problems and possible misidentifications) suggests the urgent need for reevaluation of many widely used lumbricid genera in an integrative taxonomic framework. Looking at the topology of the molecular tree, not only the homoplasy of basic morphological traits, but also the inconsistent evolutionary pattern of more sophisticated anatomical criteria used in earthworm taxonomy (e.g. the type of body wall musculature, the shape and orientation of the nephridial bladders, etc.) appear evident. Domínguez et al. (2015) also give solid evidence of the multiple origins of reproductive, feeding and burrowing habits in the family, as well as of the correlations between genealogical lineages and geographical distributions (consequence of a generally low dispersal capability). DNA sequence data is in sum essential for lumbricid phylogenetic reconstructions, but using an extended set of non trivial morphological traits (including the structure of the modified genital chaetae) plus geographical information, appears crucial for recircumscriptions and characterizations of genera and higher-level relationships in the family.

At the higher levels, while the molecular data in Domínguez et al. (2015) confirm the classification of the Sardo-Corsican genus Diporodrilus in a distinct subfamily (deserving full family rank acc. to Bouché 1970), they seem to dismiss the Balkan-Anatolian Spermophorodrilinae Omodeo & Rota, 1989 (by denying the monophyly of Healyella), an issue, however, that remains pending, due to limited sampling and the non-inclusion of the type genus and species. Thus the Spermophorodrilinae is maintained in the present updating of the FaEu database. Likewise, the molecular analyses of Domínguez et al. (2015) support the monophyly of the genera Postandrilus (Balearic species), Eiseniona, Eisenia, Lumbricus, Prosellodrilus, and Scherotheca, and suggest the para- or polyphyly of Allolobophora, Aporrectodea, Cataladrilus, Cernosvitovia, Dendrobaena, Healyella, Helodrilus, Octodrilus and Octolasion, but a formal evaluation of the taxonomic validity of all these genera will require inclusion of the respective generotype. Interestingly, the strongly supported clade comprising Eisenia (sensu stricto), Eisenoides, Allolobophoridella, Dendrodrilus and Bimastos may find morphological evidence in the number of longitudinal grooves (3 instead of 4) characterizing the genital chaetae of these genera (Kvavadze 2000), but the nominal species of Dendrobaena also sharing this character (byblica, ganglbaueri, alpina), allocated by Kvavadze (1993), Kvavadze et al. (2007) to the genus Omodeoia, should then have acquired this character independently. Interestingly also, the western archaic genus Prosellodrilus occupies with Postandrilus and other Iberian species of problematic affiliation a basal position, as does Eophila as redescribed by Omodeo and Rota (2004) (the latter would seem to pass the monophyly test, even though the type of the genus (Eo. tellinii) was not involved in the analysis by Domínguez et al. (2015) and although the relationships with certain nominal species of Cernosvitovia should be reconsidered).

Family Megascolecidae

Allochthonous megadrile family, very widely distributed, whose most ancient taxa show a predominant southeastern distribution (Australia, New Zealand, southeastern Asia), but with a tribe, the Argilophilini, endemic to western North America (Fender 1995). Chaetal arrangement lumbricine or perichaetine. Penial chaetae mostly absent. Meroic and/or holoic nephridia, some taxa enteronephric. One to six paired spermathecae. Prostates one pair, tubular or racemose, opening united with vasa deferentia in segment 18 (megascolecine arrangement). Several genera regarded as native to southeastern Asia (e.g. Amynthas, Metaphire, Perionyx, Pithemera, Pontodrilus, Spenceriella) have species distributed worldwide in tropical and temperate regions, both in natural and cultivated areas. In Europe they are mostly found in artificial environments such as greenhouses, botanical gardens, urban greens and exotic plantations.

Family Ocnerodrilidae

Allochthonous family of small, filiform, semiaquatic megadriles, sister taxon to the Megascolecidae s.l. (Jamieson et al. 2002, James and Davidson 2012; but see Rota 2013a for a summary of different phylogenetic opinions). All of the endemic genera and species are confined to South and Central America, sub-Saharian Africa, and India but several peregrine species are currently distributed at tropical and subtropical latitudes worldwide. In Europe, early authors documented the arrival of several distinct taxa in botanical gardens, but outdoor records were until not so long ago restricted to collections of Ocnerodrilus occidentalis and Eukerria saltensis in southern countries (Spain, Portugal and Italy; Szederjesi 2015 also recorded O. occidentalis in a pine forest in Greece). Rota (2013a) has recently reported several new outdoor finds of these two species from Corsica up to the Thames in central London (51°30’N) and suggested that the trade of ornamentals and horticultural products as well as current environmental and climate changes are responsible for a substantial increase of their dispersal and survival possibilities, which may cause an accelerated spread of them through the continent.

Family Octochaetidae

The earthworm genus Dichogaster is a large, heterogeneous taxon comprising some 350 species allocated to three subgenera (Csuzdi 2014). It is diagnosed by presence of penial chaetae, an acanthodriline condition of the male apparatus (two paired prostates, opening separately on segments 17 and 19, and a single pair of male pores on 18; as opposed to the megascolecine condition where one pair of male and prostatic pores unite on 18), meroic excretory system (more than two nephridia per segment), two gizzards in 6-7 and three pairs of calciferous glands in the region of 15–17. Dichogaster belongs with other megascolecoid genera to subfamily Benhamiinae, but family level classification is controversial. With regard to the nephridial system, according to Csuzdi 1995, Csuzdi 1996, Dichogaster would be a deviant representative of holoic Acanthodrilidae, whereas according to Blakemore (2005), Dichogaster belongs to separate meroic Octochaetidae. However, neither of these two classical morphology-based families is supported by molecular data (James and Davidson 2012), which rather consider Dichogaster and the other Benhamiinae as a specialized clade within Megascolecidae s.l. Octochaetidae were regarded as valid in the earlier version of the FaEu database. Since there is still no agreement on the familial position of Benhamiinae, we prefer to maintain here the previous classification.

Endemic species of Dichogaster are restricted to Central and South America and Africa, but some congeners have spread synanthropically in most parts of the world. Particularly two of them, D. bolaui and D. saliens, are among the most frequent peregrine species in tropical and subtropical regions. The prominent vascularization of their body wall and inner organs facilitates their survival and spreading under flooded conditions. According to Csuzdi (1995), these species belong to the subgenus Diplothecodrilus Csuzdi, 1996, which is probably native to tropical eastern Africa. In the last decades, both these earthworms have shown their ability to thrive and spread within the plumbing systems of urban buildings in Fennoscandia (Terhivuo 1991, Erséus et al. 1994). Once colonized, possibly by escapees from ornamental potted plants, the sewer system provides a buffered microclimate and constant food supply (biofilm, organic residues), and acts as a secondary dispersal source sheltered from the rigours of the outdoor climate in cities as far north as Oulu in Finland. More recent findings of D. bolaui in the same type of habitat in Hungary (Csuzdi et al. 2008) and in a heated swimming pool in Cork, Ireland (Rota and Schmidt 2006) document how the same process of colonization could be under way in other parts of the Old World.

Family Propappidae

Monogeneric microdrile family, endemic to the Palaearctic region. Although fully aquatic, it is dealt with in this paper because of its historical taxonomic association with the Enchytraeidae. The first Propappus species (P. glandulosus Michaelsen, 1905) was discovered in Lake Baikal and placed in the Enchytraeidae, to represent an early branch within the family. It would be later recorded also in surrounding rivers in Russia (Čekanovskaya 1962). The second species, P. volki Michaelsen, 1916, originally described from the Elbe River, Germany, appears distributed from western Europe through central Russia and the Russian Far East and Japan (Bird 1982, Coates 1986, Torii 2006, Timm 2009) and has also been recorded in the St. Lawrence River in Canada (K.A. Coates, in Torii 2006). A third species, P. arhyncotus Sokolskaya, 1972, first described from the Kamchatka Peninsula, has been collected also in the Amur basin in the farthest southeast of Russia (Timm 1994, Timm 1999). Propappus differs substantially from the Enchytraeidae, both morphologically and genetically. Its species have: sigmoid, nodulate, bifid chaetae; large epidermal glands opening through the body wall posterior to each chaetal bundle; spermathecal pores posterior to septum 3/4; glandular part of vasa deferentia located posterior to septum 11/12; and one pair of ovaries in segment 13 with female funnels located on septum 13/14. Based on this evidence, Coates (1986) removed Propappus from Enchytraeidae to form a separate monotypic family, the Propappidae. According to Brinkhurst (1994), the two families would be sister taxa; however, a comprehensive molecular analysis has failed to recover any close relationship between them (Erséus et al. 2010). Ovary organization and oogenesis are also stated to differ between the two families (Gorgoń et al. 2015), but the comparison should be extended to include more representatives of enchytraeids (for instance, Rota and Manconi 2004 reported different types of ovary organization among enchytraeid species of Marionina).

The only propappid species occurring in Europe, the proboscidate, interstitial P. volki, appears to be a good bioindicator for unpolluted water (Torii 2006).

Family Sparganophilidae

Megadrile family of very slender worms, measuring as adults 70-200 mm in length and 2-3.5 mm in maximal width, spending their life in the mud or amongst the roots of aquatic plants. The family comprises one genus and about a dozen species, nearly all restricted to the southeastern USA. The type species, Sparganophilus tamesis Benham, 1892, originally discovered in River Thames, England (Benham 1892), is itself native to eastern North America and very widespread there (from southeastern Canada to the Gulf States, plus isolated collections in Mexico and Guatemala; Reynolds 2008 as S. eiseni Smith, 1895). Another two species appear endemic to California and Oregon, and immature sparganophilids have been reported from a swampy forest in Guyana (Stacey and Coates 1996, Reynolds 2008). The American origin of Sparganophilidae is confirmed by molecular phylogenetics (Jamieson et al. 2002, James and Davidson 2012), which places the family as sister taxon to Komarekionidae, a monotypic earthworm family living in mesic forest soils on the Appalachian Mountains (Rota et al. 2014a).

Besides England, the occurrence of the family outside of America is limited to France, Switzerland, Germany, Italy (Rota et al. 2014a). Many early records of Sparganophilus, both in Europe and America, were originally assigned to distinct species. In the light of the intrapopulational morphological variability documented in S. tamesis, very likely all European records are conspecific (Jamieson 1971, Rota et al. 2014a​). The vector for the arrival of Sparganophilus worms to European waters were most certainly North American aquatic plants accidentally introduced. The synergistic interaction between submerged plants (such as Vallisneria) and Sparganophilus worms has been recently pointed out, as well as the possible reciprocal importance for the survival and spreading of the two organisms even over long distances and particularly under the ongoing climate changes (Rota et al. 2014a​).

Project description

Sampling methods

Sampling description: 

Fauna Europaea data have been assembled by principal taxonomic experts, based on their individual expertise, including literature sources, collection research, and field observations. In total no less than 476 experts contributed taxonomic and/or faunistic information for Fauna Europaea. The vast majority of the experts are from Europe (including EU non-member states). As a unique feature, Fauna Europaea funds were set aside for rewarding/compensating for the work of taxonomic specialists and group coordinators.

To facilitate data transfer and data import, sophisticated on-line (web interfaces) and off-line (spreadsheets) data-entry routines were built, integrated within an underlying central Fauna Europaea transaction database (Fig. 4). This includes advanced batch data import routines and utilities to display and monitor the data processing within the system. In retrospect, it seems that the off-line submission of data was probably the best for bulk import during the project phase, while the on-line tool was preferred to enter modifications in later versions. This system worked well untl 2013, but will be replaced by a new system in 2015.

Figure 4.  

Fauna Europaea on-line (browser interfaces) and off-line (spreadsheets) data entry tools.

A first release of the Fauna Europaea index via the web-portal had been presented at 27^th of September 2004, the most recent release (version 2.6.2) was launched on 29 August 2013. An overview of Fauna Europaea releases can be found here: http://www.faunaeur.org/about_fauna_versions.php.

Geographic coverage

Description: 

Species and subspecies distributions in Fauna Europaea are registered at least to country level, i.e. for political countries. For this purpose the FaEu geographical system basically follows the TDWG standards. The covered area includes the European mainland (Western Palearctic), plus the Macaronesian islands (excl. Cape Verde Islands), Cyprus, Franz Josef Land and Novaya Zemlya. Western Kazakhstan and the Caucasus are excluded (see Fig. 5).

Figure 5.  

Fauna Europaea geographic coverage ('minimal Europe').

The focus is on species (or subspecies) of European multicellular animals of terrestrial and freshwater environments. Species in brackish waters, occupying the marine/freshwater or marine/terrestrial transition zones, are generally excluded.

Additional notes and updating information on the geographic coverage of Annelida – Oligochaeta (terrestrial: Enchytraeidae and Megadrili), Aphanoneura and Polychaeta in Fauna Europaea can be found below:

Family Aeolosomatidae

On global coverage: Pinder (2004) reports A. hemprichi from Indonesia (ORR). Land (1970) reports (with doubts) A. hyalinum from Suriname (NEO). Wang and Cui (2007) report A. headleyi, A. hemprichi, A. hyalinum, A. travancorense from China (EPA). New records for Iraq (NRE) includes: A. leidyi and A. quaternarium (Al-Abbad 2012, Jaweir and Radhi 2013).

On European coverage: New records for Portugal includes (Picciochi 1982): A. hemprichi, A. tenebrarum, A. travancorense, A. variegatum. New records for Austria includes: A. hyalinum, A. niveum (Hörner et al. 1995). New records for Czech Republic includes: A. headleyi, A. niveum, A. quaternarium. New records for Slovak Republic includes: A. hemprichi, A. quaternarium, H. chappuisi (Schlaghamerský 2010). For Hystricosoma chappuisi there are new records for France (Route et al. 2004), Bulgaria (Subchev and Stamirinova 1986), Greece (Subchev et al. 2007), Austria (Berger et al. 2012). New records for Turkey include: A. headleyi, A. tenebrarum, A. variegatum (Balik et al. 2004).

Family Potamodrilidae

On global coverage: Potamodrilus sp. is observed in North America (Strayer 2001)

On European coverage: A new record for Turkey includes: P. fluviatilis (Balik et al. 2004).

Family Nerillidae

On global coverage: T. beranecki North American records: New Hampshire, Pennsylvania, Ohio (http://collections.mnh.si.edu/).

Family Parergodrilidae

On European and global coverage: Parergodrilus heideri new records includes: Denmark (Rota et al. 2010), Spain (Martinez-Ansemil and Parapar 2009), Korea (EPA) (Dózsa-Farkas and Hong 2010) and the USA (NEA) (Schlaghamerský and Frelich 2012).

Polychaeta incertae sedis

On European and global coverage: Hrabeiella periglandulata new records: Austria, Spain, Denmark, Hungary, Romania (Dózsa-Farkas and Schlaghamerský 2013); Korea (EPA) (Dózsa-Farkas and Hong 2010).

Family Acanthodrilidae

On global coverage: new records: Japan (EPA38) (Blakemore 2012b), Jordan (Csuzdi and Pavlíček 2005), but already recorded from NRE.

Family Enchytraeidae

In the last 15 years, many new and known species of enchytraeids have been described in good detail. This effort and the sampling of new areas and environments have not only increased the length of the local inventories (for some countries the list has been almost doubled) but also improved their quality.

First European records include: Enchytraeus luxuriosus Schmelz & Collado, 1999 and Hemifridericia bivesiculata Christensen & Dózsa-Farkas, 2006. New regional records (since 2004) fall into all geographical units and are too substantial to detail here.

Family Eudrilidae

On European coverage: Eudrilus eugeniae new records: Hungary (Csuzdi et al. 2008).

Family Glossoscolecidae

On European coverage: Pontoscolex corethrurus new records: erroneously omitted for England GB-GRB (greenhouses at Kew Gardens; Sims and Gerard 1985, Sherlock and Carpenter 2009). Actually, "the commonest among earthworms accidentally brought to Kew Royal Gardens in Wardian cases" (Beddard 1894).

Family Lumbricidae

In addition to the newly discovered species, in the last 10 years single new records, checklists and biogeographical analyses have been produced for the lumbricid faunas of several countries (e.g. Portugal, Ireland, Great Britain, Germany, Hungary, Romania, Bulgaria, Croatia, Bosnia Herzegovina, Serbia, Montenegro, Macedonia, Albania, Greece) and mountain systems (Carpathians, Stara Planina, Balkans) (Stojanović and Karaman 2005, Stojanović and Karaman 2006, Csuzdi et al. 2006, Stojanović et al. 2008, Csuzdi et al. 2011, Pop et al. 2011, Carpenter et al. 2012, Melody and Schmidt 2012, Stojanović et al. 2012, Szederjesi and Csuzdi 2012a, Szederjesi and Csuzdi 2012b, Valchovski 2012, Keith and Schmidt 2013, Hackenberger-Kutuzović and Hackenberger-Kutuzović 2013, Milutinović et al. 2013, Stojanović et al. 2013, Szederjesi 2013b, Szederjesi 2013a, Lehmitz et al. 2014, Stojanović et al. 2014, Szederjesi 2014, Szederjesi et al. 2014a, Szederjesi et al. 2014b, Szederjesi and Csuzdi 2015, Szederjesi 2015). The many new records, plus corrections of some unintentional omissions in the 2004 release (e.g. Dendrobaena cognettii (Michaelsen, 1903) in Great Britain; Sims and Gerard 1985 as D. pygmaea), fall into the following geographical units: AL, BA, BG, DE, GB-GRB, GR-GRC, HR, HU, IE, MK, PT-POR, RO, YU.

Family Megascolecidae

On European coverage: Pithemera bicincta new records: greenhouses in Hungary (Csuzdi et al. 2008) and England (Sherlock and Carpenter 2009). Metapheretima taprobanae (Beddard, 1892) first European record in greenhouses at Kew, England (Sherlock and Carpenter 2009). Pontodrilus litoralis first report for Greece, from a rocky seashore in Thrace (Szederjesi 2015).

Family Ocnerodrilidae

On European coverage: Eukerria saltensis new records: France (Corsica) FR-COR, England GB-GRB (Rota 2013a). Ocnerodrilus occidentalis new records: Italian mainland IT-ITA (Rota 2013a), Greece (Szederjesi 2015), Jordan (Csuzdi and Pavlíček 2005) but already given as cosmopolitan.

Family Octochaetidae

On European coverage: Dichogaster bolaui new records: Ireland (Rota and Schmidt 2006), Hungary, Israel (Csuzdi et al. 2008).

Family Propappidae

On global coverage: Propappus volki new record: Japan (Torii 2006). This species has also been recorded in the St. Lawrence River in Canada (K.A. Coates, in Torii 2006).

Family Sparganophilidae

On European coverage: Sparganophilus tamesis new records: Germany (Graefe and Beylich 2011), Italy (Rota et al. 2014a), Switzerland (as Sparganophilus langi Bouché and Qiu 1998).

Taxonomic coverage

Description: 

The Fauna Europaea database contains the scientific names of all living European land and freshwater animal species, including numerous infra-groups and synonyms. More details about the conceptual background of Fauna Europaea and standards followed are described above and in the project description paper(s).

This data paper covers the Annelida Oligochaeta (terrestrial: Enchytraeidae and Megadrili), Aphanoneura and Polychaeta content of Fauna Europaea, including 18 families, updated from 735 species and 43 (sub)species synonyms (see Fig. 6, Table 1) to about 800 species.

Figure 6.  

FaEu Annelida-Oligochaeta (terrestrial: Enchytraedae and Megadrili), Polychaeta and Aphanoneura species per family (see Table 1).

Additional notes and details of updating information on the taxonomic status and coverage of Annelida – Oligochaeta (terrestrial), Aphanoneura and Polychaeta in Fauna Europaea can be found below:

Family Aeolosomatidae

According to Timm (2009), Aeolosoma gineti Juget, 1959 is not a member of the family, but possibly an oligochaete parvidrilid. Martinez-Ansemil et al. (2012) have removed it from Aeolosomatidae and placed it in Parvidrilidae (Parvidrilus gineti) as species inquirenda.

The correct year of publication of A. tenebrarum by Vejdovský is 1882.

Family Enchytraeidae

1. Taxonomic novelties

A useful key to the European terrestrial enchytraeids has recently been published by Schmelz and Collado (2010), Schmelz and Collado (2012). Some nomenclature changes proposed therein, however, are not adopted here because they appear unjustified, e.g. the relegation of some species to junior synonyms or nomina dubia (see Rota 2015), or the lumping of distinct lineages into imprecisely diagnosed taxa (Cognettia sphagnetorum; see Martinsson et al. 2014).

The taxonomic novelties considered here are the following:

1.1. Newly described genera

Globulidrilus Christensen & Dózsa-Farkas, 2012

1.2. Newly described species

Achaeta antefolliculata Dózsa-Farkas & Boros, 2005

Achaeta borbonica Rota, 2015

Achaeta coimbrensis Schmelz & Collado, 2013

Achaeta diddeni Graefe, 2007

Achaeta giustii Rota, 2015

Achaeta unibulba Graefe, Dózsa-Farkas & Christensen, 2009

Cernosvitoviella longiducta Dumnicka, 2010

Cernosvitoviella tridentina Dumnicka, 2004

Chamaedrilus chalupskyi Martinsson, Rota & Erséus, 2014

Chamaedrilus pseudosphagnetorum Martinsson, Rota & Erséus, 2014

Chamaedrilus varisetosus Martinsson, Rota & Erséus, 2015

Cognettia valeriae Dumnicka, 2010

Fridericia argillae Schmelz, 2003

Fridericia bargaglii Rota, 2015

Fridericia brunensis Schlaghamerský, 2007

Fridericia ciliotheca Schmelz & Collado, 2013

Fridericia crassiductata Dózsa-Farkas & Cech, 2006

Fridericia cusanica Schmelz, 2003

Fridericia dozsae Schmelz, 2003

Fridericia granosa Schmelz, 2003

Fridericia gyromonodactyla Boros & Dózsa-Farkas, 2015

Fridericia healyae Schmelz, 2003 (pro F. polychaeta Bretscher, 1900 sensu Southern 1907, Healy 1979)

Fridericia lacii Dózsa-Farkas, 2009

Fridericia larix Schmelz & Collado, 2005

Fridericia longeaurita Boros & Dózsa-Farkas, 2015

Fridericia lenta Schmelz, 2003 (pro F. leydigii (Vejdovský, 1878) sensu Nielsen and Christensen 1959)

Fridericia mahunkai Dózsa-Farkas, 2013

Fridericia marginata Schmelz & Collado, 2013

Fridericia meridiana Rota, 2015

Fridericia rara Rota, 2015

Fridericia roembkei Schmelz & Collado, 2013

Fridericia schmelzi Cech & Dózsa-Farkas, 2005

Fridericia sousai Schmelz & Collado, 2013

Fridericia transylvanica Boros & Dózsa-Farkas, 2015

Marionina deminuta Rota, 2013

Marionina mendax Rota, 2013

Marionina mimula Rota, 2013

Marionina scintillans Boros & Dózsa-Farkas, 2008

Marionina sexdiverticulata Dózsa-Farkas, 2002

1.3. New names and synonymies

Bryodrilus librus (Nielsen & Christensen, 1959) <= B. parvus Nurminen, 1970 jun. syn.

Cernosvitoviella aggtelekiensis Dózsa-Farkas, 1970 <= C. goodhui Healy, 1975 jun. syn.

Cernosvitoviella palustris Healy, 1979 <= C. estaragniensis Giani, 1979 jun. syn.

Enchytraeus dichaetus Schmelz & Collado, 2010 nom. nov. pro E. minutus bisetosus Rota & Healy, 1994

Fridericia minor Friend, 1913 <= F. gracilis von Bulow, 1957 jun. syn.

Fridericia miraflores Sesma & Dózsa-Farkas, 1996 <= F. sylvatica Healy, 1979 nom. dub.

Mesenchytraeus pelicensis Issel, 1905 <= M. kuehnelti Dózsa-Farkas, 1991 jun. syn.

Fridericia Michaelsen, 1889 <= Timmodrilus Dózsa-Farkas, 1997 jun. syn.

1.4. New combinations

Bryodrilus librus (Nielsen & Christensen, 1959)

Chamaedrilus anomalus (Černosvitov, 1928)

Chamaedrilus cognettii (Issel, 1905)

Chamaedrilus glandulosus (Michaelsen, 1888)

Chamaedrilus hibernicus (Healy, 1975)

Chamaedrilus lapponicus (Nurminen, 1965)

Chamaedrilus paxi (Moszyński, 1938)

Chamaedrilus sphagnetorum (Vejdovský, 1878)

Chamaedrilus valeriae (Dumnicka, 2010)

Euenchytraeus clarae (Bauer, 1993)

Globulidrilus riparius (Bretscher, 1899)

1.5. Reinstatements as valid names

Chamaedrilus Friend, 1913 pro Cognettia Nielsen & Christensen, 1959 (partim)

Euenchytraeus Bretscher, 1906 pro Cognettia Nielsen & Christensen, 1959 (partim)

Buchholzia subterranea (Černosvitov, 1937)

Chamaedrilus chlorophilus Friend, 1913

Enchytraeus bohemicus Dumnicka, 1996

Fridericia digitata Cognetti, 1901

Fridericia glandifera Friend, 1913

Fridericia humicola Bretscher, 1900

1.6. Species complexes

The following names are considered as species complexes, their taxonomy being currently still unresolved:

Enchytraeus buchholzi s.l.

Enchytronia parva s.l.

Fridericia aurita s.l.

Fridericia ratzeli s.l.

1.7. Rejected synonymies

Achaeta etrusca Rota, 1995 ≠ A. iberica Graefe, 1989

Fridericia caprensis Bell, 1947 ≠ F. pretoriana Stephenson, 1930

Fridericia sohlenii Rota, Healy & Erséus, 1998 ≠ F. cylindrica Springett, 1971

Fridericia glandulosa Southern, 1907 ≠ F. galba (Hoffmeister, 1843)

Family Hormogastridae

The correct year of publication of Vignysa Bouché is 1970; same for Vignysa popi Bouché, 1970 (both recorded as 1972 in the 2004 release).

Taxonomic comments: H. elisae species complex comprises at least five cryptic allopatric species.

Species to be added as valid: H. riojana, H. ireguana, H. eserana, H. huescana, H. arenicola, H. catalaunensis, H. sylvestris, H. najaformis, H. castillana (no H. multilamella, H. lleidana), all authored 'Qiu & Bouché, 1998'

Hormogaster abbatissae Novo et al., 2012a

Hormogaster joseantonioi Fernández Marchán et al., 2014

Family Lumbricidae

1. Taxonomic novelties

Since the first version of the Fauna Europaea database in 2004, some 17 new species have been described from our continent and the status of some known species has been formally revised (Perez-Onteniente and Rodriguez-Babio 2004, Zicsi and Cuendet 2005, Csuzdi and Pop 2008, Höser and Zicsi 2009, Perez-Onteniente and Rodriguez-Babio 2010, Csuzdi et al. 2011, Blakemore 2012a, Szederjesi and Csuzdi 2012a, Szederjesi and Csuzdi 2012b, Díaz-Cosín et al. 2014, Szederjesi et al. 2014a, Szederjesi and Csuzdi 2015). Considering the uncertain phylogenetic status of many genera, recently published proposals of new genera and genus rank (e.g. Blakemore 2012a for Prosellodrilus subgenera) will be not considered in the present FaEu database updating.

1.1. Newly described species:

Allolobophora prosellodacica Csuzdi & Pop, 2008 (herein transferred to Eophila)

Allolobophora ruzsai Szederjesi, 2014

Dendrobaena luraensis Szederjesi & Csuzdi, 2012

Dendrobaena retrosella Szederjesi & Csuzdi, 2012

Dendrobaena virgata Szederjesi et al., 2014

Dendrobaena vladeasa Csuzdi et al., 2011

Eisenia muranyii Szederjesi & Csuzdi, 2015

Eisenia oreophila Szederjesi & Csuzdi, 2012

Eiseniona gerardoi Díaz-Cosín et al., 2014

Eumenescolex proclitellatus Perez-Onteniente & Rodriguez-Babio, 2004

Kenleenus armadas Blakemore, 2012 (pro Prosellodrilus amplisetosus Bouché, 1972 sensu Melody and Schmidt 2012, Keith and Schmidt 2013) (herein transferred to Prosellodrilus)

Octodrilus albanicus Szederjesi & Csuzdi, 2015

Octodrilus izanus Csuzdi et al., 2011

Octodrilus juvyi Zicsi & Cuendet, 2005

Octodrilus parvivesiculatus Csuzdi et al., 2011

Proctodrilus thaleri Höser & Zicsi, 2009

Zophoscolex albacetensis Perez-Onteniente & Rodriguez-Babio, 2010 (herein transferred to Aporrectodea)

1.2. New synonymies:

Eophila getica (Pop, 1947) <= Allolobophora dugesi var. getica = Cernosvitovia (Zicsiona) getica Mršić & Šapkarev, 1987 = Cernosvitovia (Zicsiona) silicata Mršić & Šapkarev, 1987 = Cernosvitovia (Zicsiona) paradoxa Mršić, 1992; revision by Csuzdi and Pop (2007b).

Dendrobaena attemsi Michaelsen, 1902 <= Dendrobaena apora Qiu & Bouché, 1998; revision by Szederjesi and Csuzdi (2012a).

Octolasion cyaneum (Savigny, 1826) <= Dendrobaena jeanneli Pop, 1948 revision by Csuzdi and Pop (2007a).

1.3. New combinations

Aporrectodea albacetensis (Perez-Onteniente & Rodriguez-Babio, 2010)

Eophila prosellodacica (Csuzdi & Pop, 2008)

Prosellodrilus armadas (Blakemore, 2012)

Family Sparganophilidae

Sparganophilus langi Qiu & Bouché, 1998 from Switzerland is a junior synonym of S. tamesis Benham, 1892 (Graefe and Beylich 2011, Rota et al. 2014a).

2. Classification

The oligochaete suprafamilial rankings, as they were published in FaEu 2004 and listed below, need revision. No adjustments to the rankings were introduced in this paper.

Traits coverage

Temporal coverage

Collection data

Usage rights

Data resources

Additional information

Acknowledgements

References

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