Streptodonta pterochaeta ( Southern, 1914 )

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 : 353

Streptodonta pterochaeta ( Southern, 1914) , n.comb.

Fig. 81E

Opisthodonta pterochaeta Southern, 1914: 30 , pl. IV, figs 6A– G.— Fauvel, 1923: 274, fig. 102d–i.— Hartmann-Schröder, 1971: 104, figs 4–6; 1996: 160.— Campoy, 1982: 304, pl. 24.— Bachelet, 1990: 174, fig. 1.— Parapar et al., 1993: 370, fig. 4.—San Martín, 2003: 51, figs 13, 14.

Material examined. AUSTRALIA: NEW SOUTH WALES: Bass Point , 34°36'S 150°54'E, 50 m, 1 Feb 1990, 1 ( AM W22989) .

Description. Body slender, with numerous segments. Incomplete specimen, 4.2 mm long, 0.4 mm wide, with 31 chaetigers; an entire individual, may reach 10 mm or more. Prostomium pentagonal to triangular, with 2 pairs of eyes arranged in open trapezoidal pattern, and 2 anterior eyespots ( Fig. 81A). Median antenna inserted between anterior eyes, slightly longer than combined length of prostomium and palps, lateral antenna in front of anterior eyes. Palps small, triangular, basally fused, shorter than prostomium ( Fig. 81A). Peristomium slightly shorter than following segments; dorsal tentacular cirri longer than lateral antennae, shorter than median, ventral tentacular cirri shorter than dorsal ones. Dorsal cirri similar in shape to antennae and tentacular cirri, smooth, elongated, relatively short, shorter than body width ( Fig. 81A), detached on most parapodia. Ventral cirri triangular, similar in length to parapodial lobes. Compound chaetae heterogomph falcigers, blades with indistinct distal