's RIJKS MUSEUM VAN NATUURLIJKE HISTORIE — LEIDEN. 75 



Genus Orseis Ehlers. 

 (Salvatoria Mc Intosh). 



Body short, consisting of few segments. Cephalic lobe provided with 



3 antennae, the unpaired one on the middle of the head; palps present. 



4 eyes. The proboscis with papillae on its anterior margin. A single pair 

 of tentacular cirri on each side. Parapodia faintly biramous. 



Kerguelensis Mc Int. {Mathai Grav.) Gravier's Orseis mathai presumably 

 is identical with Salvatoria Kerguelensis from the Sub-antarctic region, 

 though Mc Intosh does not mention the palps. Challenger Report, zoology, 

 Yol. XII, Annelida, p. 188, PL XXX, XXXIII and XYa. Expe- 

 dition Antarct. française 1903 — 05, Annel. polych. p. 22, PL III, 

 figs. 22—23. Kerguelen; Port Charcot. 



Pulla Ehl. Die Borstenwürmer, p. 188, PL VIII, fig. 1 Quarnero. 



Genus Ancistrosyllis Mc Intosh. ] ) 



(Harpochaeta Korsch.). 



(Cabira Webst.). 



Body long, with numerous segments. Cephalic lobe with three antennae, 



the unpaired one on the posterior region of the head; two large palps 



with palpostyle. Eyes small or absent. Proboscis unarmed. A single pair 



of tentacular cirri on each side. Parapodia biramous, with a large, 



dorsal, hook-shaped bristle. 



A. Skin covered with papillae. 



groenlanclica Mc Int. Trans. Linn. Soc. (2e Ser.) Vol. I, 1878, 

 p. 502, PL 65, figs. 3 and 20. Davis Strait. 



B. Skin smooth. 



a. Palps coalesced. 



cingulata Korsch. Zeitschr. f. Wissensch. Zoologie, Vol. 57, 1893. 

 Adriatic Sea (Triest). 



b. Palps distally separated. 



öj. dorsal bristle faintly bent. 



albini Lghs. 2 ) Ueber einige canarische Anneliden: Nova Acta 

 K. Leop. Carol. Deutsch. Akad. d. Naturf. Vol. 42, 1881, 

 p. 107, PL 4, fig. 16. Canaries. 

 rigida Fauv. Bull. Mus. d'Hist. nat. 1919, no. 5, p. 2, 

 figs, a — e. Gambir isles; Red Sea. 

 (3. dorsal bristle hook-shaped. 



1) For an elaborate revision of the genus and species see Fauvel, les genres Ai/c//sfros////'s 

 et Pilargis: Bull. Société Zoolog. de France, Vol. 45, 1920, p. 205. 



2) This species seems to have been overlooked by Fauvel; it is distinguished from A. rigida 

 a. o. by the presence of only 2 eyes. 



