Pseudopotamilla aspersa Kroyer 1856 ...

• Main Authors: Knight-Jones, Phyllis, Darbyshire, Teresa, Petersen, Mary E., Tovar-Hernández, María Ana
• Format: Text
• Language: unknown
• Published: Zenodo 2017
• Subjects: Biodiversity; Taxonomy; Animalia; Annelida; Polychaeta; Sabellida; Sabellidae; Pseudopotamilla; Pseudopotamilla aspersa; Canada; Darbyshire; Greenland; Petersen; Iceland
• Online Access: https://dx.doi.org/10.5281/zenodo.6040990; https://zenodo.org/doi/10.5281/zenodo.6040990

Pseudopotamilla aspersa (Krøyer, 1856) reinstated ( Fig. 4) Sabella aspersa Krøyer, 1856: 19 –20. Material examined. Type material: Type (ZMUC – POL 00423), Greenland, by default as two other syntypes are missing. In the description, other data in brackets comes from unpublished drawings and notes of one of Krøyer’s missing syntypes (RLC, New Royal collection, 322). Diagnosis. Collar with low, rounded lappets dorsally; dorsal collar margin convex; peristomium slightly exposed laterally; lateral margins of collar V-shaped; handles of companion chaetae twice length of handles of adjacent uncini. Description. Body length (without radiolar crown) about 31 (48) mm and 2 mm wide (Fig. 4 A). Crown damaged, but Krøyer’s unpublished figures of a lost syntype shows crown length equal to length of 8 thoracic segments and Fig. 4 M (copy of Krøyer’s figure) shows a detached crown with one or two single compound eyes per radiole, except dorsal-most. Dorsal lip with bifid appearance, but difficult to see (Figs 4 B–D). Body ... : Published as part of Knight-Jones, Phyllis, Darbyshire, Teresa, Petersen, Mary E. & Tovar-Hernández, María Ana, 2017, What is Pseudopotamilla reniformis (Sabellidae)? Comparisons of populations from Britain, Iceland and Canada with comments on Eudistylia and Schizobranchia, pp. 201-220 in Zootaxa 4254 (2) on pages 208-210, DOI: 10.11646/zootaxa.4254.2.3, http://zenodo.org/record/545877 ...