Streblosoma Sars, 1872

Nogueira, João Miguel De Matos & Hutchings, Pat A., 2007, New species of terebellid polychaetes (Polychaeta: Terebellidae) from Australia, Zootaxa 1473, pp. 1-24 : 18

Streblosoma Sars, 1872

Type species: Grymaea bairdi Malmgren, 1866 .

Diagnosis. Prostomium at base of upper lip; basal part of prostomium frequently with eyespots, distal part usually forming shelf-like process from which buccal tentacles originate. Peristomium forming lips, sometimes continuing dorsally. Lateral lobes on anterior segments absent, but segment 2 usually protruding ventrally. Zero to 3 pairs of branchiae, on segments 2–4, each with numerous simple filaments progressively tapering to tips. Notopodia beginning on segment 2, continuing for variable number of segments; notochaetae as limbate capillaries, arranged in two tiers, anterior tier with shorter chaetae. Neuropodia beginning on segment 5, extending until posterior body, neuropodia usually glandular, slightly raised from body wall; uncini with elongate base, dorsal button terminal or almost, prow, if present, reduced to short knob and main fang topped by few rows of secondary teeth.

Remarks. Streblosoma is a large genus, with 30 described species, distinguished mostly by arrangement and number of branchial filaments and eyespots, if present, morphology of notochaetae and uncini, arrangement of uncini and, in the case of Streblosoma bingarra sp. nov., described below, size of lower lip and structure of anterior ventral surface of the body.