Pseudopolydora Czerniavsky, 1881

Abe, Hirokazu & Sato-Okoshi, Waka, 2021, Molecular identification and larval morphology of spionid polychaetes (Annelida, Spionidae) from northeastern Japan, ZooKeys 1015, pp. 1-86 : 1

Genus Pseudopolydora Czerniavsky, 1881

Larval diagnosis.

Overall body shape thick and fusiform. Prostomium broad and rounded or gently notched anteriorly. Three pairs of black eyes present, most lateral often double-eyes. Mid-dorsal melanophore on the first chaetiger present in many species, absent in some species. Dorsal pigmentation consists of one or two pairs of branching melanophores (except P. rosebelae : mid-dorsal single row of melanophores present). Lateral and ventral pigments present or absent. Nototrochs occur in all chaetigers except first two chaetigers. Gastrotrochs occur in irregular pattern. Modified chaetae in chaetiger V and ventral hooded hooks from chaetiger VIII onwards develop in late larvae ( Hannerz 1956, as Polydora ; Rullier 1963, as Polydora ; Rasmussen 1973; Blake and Woodwick 1975; Srikrishnadhas and Ramamoorthi 1977; Wu and Chen 1980; Radashevsky 1983, 1985; Plate and Husemann 1994, as Polydora ; Hsieh 1994; Blake 2006; Radashevsky and Migotto 2009; Kondoh et al. 2017).