POLYCH/ETA OF PLYMOUTH. 599 



Breeding : Females with ova, some with well developed swim- 

 ming bristles, in April. 



EusYLLis MONiLicoRNis Malmgren : de St. Joseph, Ann. Sci. Nat. Zool. 

 I. 1886, p. 169 (of. Langerhans, Wurmfauna von Madeira, Zeits, 

 Wiss. Zool. XXXII. 1879, p. 551). 



Plymouth. Single specimens have been taken on a nnmber of 

 occasions from dredgings in the Sound, at Duke Kock and Asia 

 Shoal. One from Mewstone Ledge. 



The species is clearly distinguished from E. tubifex (Gosse) by its 

 more robust form, and by the character of the setae, the end pieces 

 of which are of two kinds in each typical foot, the one short and 

 stout, the other long and slender. The hinder part of the head 

 generally carries a conspicuous patch of dark brown or black pig- 

 ment. 



EusYLLis LAMELLIGERA Mariou and Bobretzky : Amielides du Golfe 

 de Marseille, Ann. Sci. Nat. 6^ ser. II. p. 33. PL III. Fig. 9. de St. 

 Josej)h, Ann. Sci. Nat. Zool. I. 1886, p. 169. 



Plymouth. Two or three specimens have been obtained from 

 dredgings from Mewstone Ledge and Eddystone Grounds. 



Breeding : A female with nearly ripe eggs was taken in July. 



A well defined species, which can easily be recognised by the 

 enlarged leaf-like shape of the first pair of ventral cirri. It is well 

 described by Marion and Bobretzky. 



Odontosyllis ctenostoma Claparede : Mcintosh, Mon. Brit. Ann. II. 

 1, 1908, p. 182. 



Plymouth. Very abundant on the shores of the Sound and 

 frequent in dredgings from the Sound. 



Breeding : A specimen in the swimming stage, with long setae, 

 was recorded in May. 



Torquay. The most abundant of all the species of Syllids 

 {Elwes, Journ. M.B.A., vol. 8, 1908, p. 199). 



Odontosyllis fulgurans Audouin and Edwards : Mcintosh, Mon. 

 Brit. Ann. II. 1, 1908, p. 179. 



Plymouth. Dredged at Queen's Ground (New Grounds), Mew- 

 stone Ledge, off Stoke Point and on Eame Eddystone Grounds. 

 Usually not more than one specimen on each occasion. 



Odontosyllis gibba Claparede : Mcintosh, Mon. Brit. Ann. II. 1, 

 1908, p. 183. 



Plymouth. Common in dredgings from Asia Shoal, Duke Rock, 

 Queen's Ground and Millbay Channel. 



Torquay. Several examples were found at Corbyn's Head 

 {Elwes, Journ. M.B.A., vol. 8, 1908, p. 199). 



Trypanosyllis zebra (Grube) : Mcintosh, Mon. Brit. Ann. II. 1, 

 1908, p. 169. 



