Polychaete Worms of the Family Paraonidae Cerruti, 1909: Polychaeta, Sedentaria

A-dorsal view Aedicira anal cirri Anal segment Annenkova anterior segments anteriorly Aricidea Acesta Aricidea Allia Aricidea Aricidea Barents Sea basal enlargements body segments branchial region branchial segments buccal segment capillary setae Cerruti cilia cirri cirriform Cirrophorus branchiatus coastal waters distal Distribution and Ecology Dorsal podial lobes dorsal setae Eyes absent fascicle fragilis fringed genus Geographic Distribution Gulf Laubier lip of mouth littoral zone lyrate setae ment Modified setae muddy sand nolani Nuchal grooves nuchal organ number of branchiae Oresund Pacific Ocean pairs of branchiae Paraonella paraonids parapodia parapodium paratype Pettibone pharynx pigment podial lobes short Polychaeta postbranchial segments posteriorly prebranchial segments prostomium quadrilobata region of body salinity segments fig shorter simplex slender specimen with width Spionidae Strelzov tapering Tauberia gracilis temperature Terminal sensory organ thick thickened thinner tips tuberculate Unpaired prostomial antenna Ventral podial lobes ventral rami Webster and Benedict Width of body worms