Odontosyllis ctenostoma Claparède, 1868

Çinar, Melih Ertan & Gambi, Maria Cristina, 2005, Cognetti’s syllid collection (Polychaeta: Syllidae) deposited at the Museum of the Stazione Zoologica ‘‘ Anton Dohrn’ ’ (Naples, Italy), with descriptions of two new species of Autolytus, Journal of Natural History 39 (10), pp. 725-762 : 750-751

Odontosyllis ctenostoma Claparède, 1868

Odontosyllis ctenostoma Claparède 1868, p 202 –203, Plate 12, Figure 4 ; Fauvel 1923, p 277, Figures 104e, f; Cognetti 1957, p 33 –34; San Martín 1984, p 97, Figure 15.

Odontosyllis fulgurans ; Cognetti 1957 (in part), p 31 (non Claparède 1864).

Material examined

SZN-POL14, one specimen, Station 1, Lago Fusaro, 20 February 1955, on algae, 0–1 m, coll. Cognetti; SZN-POL15, one specimen, Station 5, Mergellina, on algae, 0–2 m, coll. Cognetti.

Notes

Specimen complete, 10.25 mm long, 0.65 mm wide, H+ 1051.07 mm, for 70 chaetigers, with swimming chaetae after chaetiger 15. Falcigers unidentate; inferior ones with blades sickle-shaped; blades 10–17.5 Mm long on middle parapodia. Proventricle 0.78 mm long, 0.26 mm wide, through seven segments, with 65 muscle cell rows. Pharynx occupying six segments, with five pharyngeal teeth directed backwards.

Distribution

Mediterranean and Atlantic Ocean (San Martín 1984).

Odontosyllis gibba Claparède, 1863

Odontosyllis gibba: Fauvel 1923, p 275 , Figures 104a–e; Cognetti 1957, p 32 –33; San Martín 1984, p 91, Figure 13.

Material examined

SZN-POL16, one specimen, Station 11, Punta Tiberio, on Peyssonnelia , 50–70 m, coll. Cognetti.

Notes

Specimen complete, 4.13 mm long, 0.40 mm wide, H+ 1051.55 mm, for 32 chaetigers, with black pigmentation in anterior region; dorsal cirri with a black ring subdistally. Falcigers unidentate; blades 22.5–32.5 Mm long on anterior parapodia and 22.5–37.5 Mm long on posterior ones. Dorsal and ventral simple chaetae only seen on posterior-most parapodia, thin, slightly bidentate. Proventricle 0.37 mm long, 0.24 mm wide, through 2.5 segments, with 35 muscle cell rows. Pharynx relatively short, occupying half segment; trepan with six rounded teeth directed backwards.

Distribution

Mediterranean, Atlantic and Indian Ocean (San Martín 1984).

Pionosyllis lamelligera Saint-Joseph, 1856

Pionosyllis lamelligera: Fauvel 1923, p 288 , Figures 110a–g; Cognetti 1957, p 41, Figure 7 ; San Martín 1984, p 105, Figure 16.

Material examined

SZN-18, one specimen, Station 5, Mergellina, 29 September 1954, on algae, 2–5 m, coll. Cognetti.

Notes

Specimen incomplete, 4.50 mm long, 0.14 mm wide, H+ 1050.80 mm, for 38 chaetigers, dark brownish, with black spots on dorso-median and dorso-lateral sides of chaetigers 1–5, a black transverse broad band at conjunction of segments between chaetiger 5 and 19. Ventral cirri on chaetiger 1 broad, lamella-shaped. Falcigers numbering 14 on anterior parapodia, bidentate; blades 17.5–37.5 Mm long. Falcigers numbering eight on posterior parapodia; superior falcigers similar to those on anterior parapodia, with a blade 35 Mm long, inferior ones with short blade (10 Mm long); proximal tooth coarser than distal one. Proventricle 0.20 mm long, 0.11 mm wide, occupying 3.5 segments, with 20 muscle cell rows. Pharynx through ca six segments, with pharyngeal tooth antero-dorsally.

Distribution

Mediterranean and Atlantic Ocean (San Martín 1984).

Figures

Figure 4. (A) Ventral view of anterior and posterior parts of Autolytus convolutus; (B) trepan; (C) superior falciger on anterior parapodium; (D) dorsal simple chaeta. Scale bar: 100 Mm (A); 15 Mm (B); 5 Mm (C, D).

Figure 7. (A) Anterior and posterior parts of Autolytus rubropunctatus; (B) trepan; (C) falcigers on anterior parapodium; (D) dorsal simple chaeta; (E) aciculae on middle parapodium. Scale bar: 100 Mm (A); 21 Mm (B); 5 Mm (C–E).