Dendrogram showing the similarity between the proboscis profiles of female Echinorhynchus bothniensis, E. 'bothniensis', E. leidyi and E. truttae. A principal component analysis was applied to the proboscis profile data and the dendrogram was created from hierarchical clustering of the scores for principal components one and two. Analysis based on data in Suppl. material 4

  Part of: Wayland M (2013) Morphological variation in Echinorhynchus truttae Schrank, 1788 and the E. bothniensis Zdzitowiecki & Valtonen, 1987 species complex from freshwater fishes of northern Europe. Biodiversity Data Journal 1: e975.