Pseudopotamilla Bush 1905 ...

• 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; Canada; Petersen; Darbyshire; Iceland
• Online Access: https://dx.doi.org/10.5281/zenodo.6040984; https://zenodo.org/doi/10.5281/zenodo.6040984

GENUS Pseudopotamilla Bush, 1905 Diagnosis. Medium sized sabellids with numerous pairs of radioles in semicircular radiolar lobes, each radiole with at least four rows of vacuolated cells. Basal membrane, radiolar flanges and basal flanges absent. One to several unpaired compound radiolar eyes bulging along outer radiolar margins, on at least some dorsal radioles, except for dorsal-most pair. Dorsal lips with radiolar and pinnular appendages; ventral radiolar appendages absent. Ventral lips and parallel lamellae present, ventral sacs inside radiolar crown. Anterior peristomial ring low, of even height. Posterior peristomial ring collar present, with narrow mid-dorsal gap, dorsal margins laterally fused to faecal groove, with a mid-ventral incision and short ventral lappets, and usually also with dorso-lateral incisions. Peristomial vascular loops absent. Peristomial eyespots may be present. Thorax and abdomen with variable number of chaetigers. Glandular ridge on chaetiger 2 absent. Ventral shields present. ... : 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 page 203, DOI: 10.11646/zootaxa.4254.2.3, http://zenodo.org/record/545877 ...