Diplocirrus incognitus Darbyshire & Mackie, 2009

Salazar-Vallejo, Sergio I. & Buzhinskaja, Galina, 2011, Revision of Diplocirrus Haase, 1915, including Bradiella Rullier, 1965, and Diversibranchius Buzhinskaja, 1993 (Polychaeta, Flabelligeridae), ZooKeys 106, pp. 1-45 : 21

Diplocirrus incognitus Darbyshire & Mackie, 2009 Fig. 5

Diplocirrus incognitus Darbyshire and Mackie 2009:99-102, Figs. 3B, 4, Table 1.

Diagnosis.

Body anteriorly swollen (Fig. 5A). Papillae abundant, short, giving a velvety oultlook, with scattered sediment particles (Fig. 5B, C). Lateral papillae 1/3 as long as longest notochaetae. Median notochaetae with long articles (Fig. 5D). Neurochaetae with long articles, tips barely curved (Fig. 5E).

Remarks.

As stated above, Diplocirrus incognitus Darbyshire & Mackie, 2009 resembles Diplocirrus glaucus (Malmgren, 1867), because both have bodies anteriorly swollen and few sediment particles spread over the body. They differ in the relative size of lateral papillae and on the notochaetal basis articulation; thus, in Diplocirrus incognitus papillae are longer (up to one-third notochaetal length), and notochaetal bases have medium-sized articles, whereas in Diplocirrus glaucus papillae are smaller (up to one-fifth notochaetal length) and notochaetal bases have poorly-defined articles.

Distribution.

South Africa, offshore, in muddy bottoms of about 100 m depth.