Nudisyllis Knox & Cameron, 1970

San Martin, G & Hutchings, PA, 2006, Eusyllinae (Polychaeta: Syllidae) from Australia with the Description of a New Genus and Fifteen New Species, Records of the Australian Museum 58, pp. 257-370 : 280-281

Genus Nudisyllis Knox & Cameron, 1970

Nudisyllis Knox & Cameron, 1970: 77 , emended.

Type species. Nudisyllis tinihekea Knox & Cameron, 1970 .

Diagnosis. Body small, fragile, <5 mm in length. Prostomium large, about width of 2 segments, with 4 eyes and sometimes pair of anterior eyespots. Three antennae. Palps separated, free from each other, sometimes adjacent at base. Median antenna inserted on middle of prostomium or anteriorly, on line with lateral antennae. Two pairs of tentacular cirri. Nuchal organs as 2 ciliated grooves between prostomium and peristomium. Dorsal cirri on all chaetigers, long, cylindrical, smooth or slightly rugose. Ventral cirri not modified. Compound chaetae with both unidentate and bidentate blades on same parapodium, or all unidentate; bidentate blades having proximal tooth small, spine-like.

emended the diagnosis and the genus now includes some species previously considered belonging to Pionosyllis , among them P. pulligera ( Krohn, 1852) ; P. magnidens Day, 1953 ; and P. divaricata (Keferstein, 1862) .