Amphiduros fuscescens (Marenzeller, 1857). Living specimens in dorsal view. A–C. Whole body; D. and E. Detail of the anterior end; A and D. Male from Blanes; B and E. Female from Blanes; C. Female from Sant Feliu; la: lateral antennae; pa: palps; ca: central antennae; ey: eyes; no; nuchal organs.

  Part of: Martin D, Romano C (2021) Morphology and sexual dimorphism of living mature adults of Amphiduros fuscescens (Marenzeller, 1875) (Annelida, Hesionidae, Amphidurine), first reported for the Iberian Peninsula. Biodiversity Data Journal 9: e66020.