Salvatoria quadrioculata (Augener, 1913), 2005

Guillermo San Martin, 2005, Exogoninae (Polychaeta: Syllidae) from Australia With the Description of a New Genus and Twenty-two New Species, Records of the Australian Museum 57, pp. 39-152 : 54

Salvatoria quadrioculata (Augener, 1913) n.comb.

Figs. 9A–C, 10A–D

Grubea quadrioculata Augener, 1913: 254 , pl. 3, fig. 31, textfig. 38; Haswell, 1920a: 223, pl. 17, figs. 21–26.

Material examined. AUSTRALIA: NEW SOUTH WALES. 1 specimen, AM W488, Port Jackson, 33°51'S 151°16'E. 1 specimen on slide, AM W25239, Port Jackson, 33°50'S 151°16'E. 1 specimen, AM W26421, Manta Reef, North West Solitary Island, 30°01.5'S 153°16.5'E, curly bryozoan, 18 m, R.T. Springthorpe, 25 Jun 1992. 17 specimens, AM W26438, 150 m east of Burrill Rocks, 35°23.41'S 150°28.18'E, dead bryozoan encrusted with algae, bryozoa and hydroids, 17 m, K.Attwood, 1 Mar 1997. 8 specimens,AM W26439, Manta Reef, North West Solitary Island, 30°01.5'S 153°16.5'E, lace bryozoan, 19 m, R.T. Springthorpe, 25 Jun 1992. 1 specimen, AM W26536, northern side of Bannister Head, 35°19.15'S 150°29.12'E, grey sponge from top of boulder, 18 m, K. Attwood, 6 May 1997. 1 specimen, AM W26538, 100 m north west of Split Solitary Island, 30°14.0'S 153°10.8'E, encrusting algae & ascidians, 16 m, E.L. Albertson, 7 Mar 1992. 1 specimen, AM W26539, Halfway Reef, 200 m south of Sullivan Reef, Ulladulla, 35°21.42'S 150°29.31'E, airlift over wall of sponges, bryozoa & hydrozoa, 15 m, K. Attwood et al., 3 May 1997. 5 specimens, AM W26540, 150 m east of Burrill Rocks, 35°23.41'S 150°28.18'E, surface of sponges, 19 m, K. Attwood et al., 1 May 1997. 1 specimen, AM W26545, Burrill Rocks, Ulladulla, 35°23.29'S 150°28.24'E, gorgonacean, 24 m, R.T. Springthorpe, 7 May 1997. 2 specimens, AM W26659, north east corner of Clark Island, 33°51.85'S 151°14.47'E, Ecklonia holdfast, 5 m, P.A. Hutchings, 17 Apr 1996. 1 specimen, AM W26507, west side of Bowen Island, half way along, ACT, 35°06.91'S 150°45.91'E, pink sponge on overhang and surrounding bottom, 8 m, P. Serov & G.D. F. Wilson, 7 Dec 1993. 15 specimens (4 on SEM stub), AM W26508, half way along west side of Bowen Island, Jervis Bay, ACT, 35°06.91'S 150°45.91'E, sponge encrusted rock, smooth grey sponge, 6 m, P. Serov & G.D.F. Wilson, 7 Dec 1993. 1 specimen, AM W26509, west side of Bowen Island, half way along, ACT, 35°06.91'S 150°45.91'E, grey sponge with orange flesh, large oscular chamber, 8 m, P. Serov & G.D.F. Wilson on “Sula”, 7 Dec 1993.

Description. Body long, proportionally broad, 3.5–4 mm long, 0.3 mm wide, 33 chaetigers; segments wide and short (Figs. 9A, 10A,B). Prostomium ovate, wider than long, with 4 eyes in trapezoidal arrangement nearly in line. Median antenna long, thick at bases, more than twice as long as prostomium and palps together, inserted just in front of line between posterior eyes; lateral antennae similar in thickness but much shorter, similar in length to prostomium and palps together. Palps broad, slightly longer than prostomium, fused dorsally except for a distinct anterior notch (Figs. 9A, 10B). Peristomium covering posterior margin of prostomium; dorsal tentacular cirri similar to antennae, longer than lateral antennae but shorter than median antenna, ventral tentacular cirri similar in length to lateral antennae. Dorsal cirri on all parapodia (Fig. 9A); dorsal cirri of chaetiger 1 long, similar in length to median antenna, longer than body width, dorsal cirri of chaetigers 2 and 3 much shorter, remaining dorsal cirri irregularly varying in length. Compound chaetae with proportionally thick shafts, ornamented with short subdistal spines, and long, wide, strongly bidentate blades, with short, erect marginal spines (Fig. 10D); anterior parapodia each with about 10–11 compound chaetae, dorsoventral gradation in lengths of blades, 32 µm above, 22 µm below, teeth thicker and more separated ventrally (Fig. 9B); progressively posteriorly number of compound chaetae declines, with 4–5 on each posterior parapodia, with less marked dorsoventral gradation in length of blades, 23 µm above, 18 µm below, all compound chaetae similar to ventral ones of anterior parapodia (Fig. 9C). Dorsal and ventral simple chaetae not seen. Acicula solitary, acuminate. Pharynx wide, extending through about 6 segments, surrounded by a crown of few, small, soft papillae on the opening (Fig. 10C); pharyngeal tooth apparently small (but long when pharynx is everted, Fig. 10C), located close to anterior rim. Proventricle similar in shape to pharynx, through about 6 segments, with about 18–20 muscle cell rows. Pygidium small, provided with 2 long anal cirri, similar in shape to dorsal cirri.

Distribution. Australia: (Western Australia, New South Wales).

Habitat. Sublittoral, on sponges, bryozoans, ascidians, hydrozoans, gorgoneans, amongst crusts of calcareous algae, kelp holdfasts, in depths to 24 m.