Scolelepis Blainville, 1828

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 Scolelepis Blainville, 1828

Larval diagnosis.

Overall shape thick and fusiform. Prostomium pointed anteriorly, terminates in retractile, muscular tip. Lateral parts of peristomium clearly demarcated from prostomium, forming large peristomial umbrella. Short palps on lateral-most parts of peristomium. Two pairs of red eyes present. Melanophore absent, black, brown, orange, red, or green pigmentation patches often present in body surface, pharynx, gut, and/or proctodaeum. Nototrochs present or absent. Gastrotrochs occur in all chaetigers from chaetiger II or III onwards. Pygidium large, inflated, and surrounded by thick telotroch ( Okuda 1946, as Spio filicornis ; Hartman 1941, as Nerinides ; Thorson 1946, as Nerine in part see Hannerz 1956; Hannerz 1956, as Nerine and Nerinides ; Imajima 1959, as Nerinides ; Dean and Hatfield 1963, as Nerinides ; Carrasco 1976, as Nerine and Nerinides ; Plate and Husemann 1994; Scheltema et al. 1997; Blake and Arnofsky 1999; Blake 2006).