POLYCH.ETA OF PLYMOUTH. 603 



Syllis (typosyllis) krohnii Ehlors : Mcintosh, Mon. Brit. Ann. II. 1, 

 1908, p. 192. 



Plymouth. Amongst Corallina from Rum Bay, and from under 

 a stone at Wembury Bay. 



Breeding : A specimen from Wembury Bay in March had a well- 

 developed stolon with four red eyes. 



Torquay. Amongst Coralhna from Corbyn's Head {Elwes, Joum. 



M.B.A., vol. 8, 1908, p. 200). 



Syllis (ehlersia) gornuta Rathke : Mcintosh, Mon. Brit. Ann. II. 1, 

 1908, p. 200. 



Plymouth. Eddystone Grounds {w ddon, Souxn. M.B.A., vol. 5, 1899, 

 p. 481). Occasional specimens which I believe belong to this species 

 have been obtained from dredgings from Duke Pock, Queen's 

 Ground and Asia Shoal, but the identification is not quite certain, 



Syllis gracilis Grube : Mcintosh, Mon. Brit. Ann. II. 1, 1908, p. 203, 

 Plymouth. Dredgings from Millbay Channel, Asia Shoal and 

 Queen's Ground. Single specimens frequently n:iet with. Bum 

 Bay shore, from crevices of shale. 



Syllis (haplosyllis) spongicola Grube : Mcintosh, Mon. Brit. Ann. II. 

 1, 1908, p. 197. 



Plymouth. Occasional specimens have been found in dredgings 

 from Plymouth Sound (Millbay Channel, Winter Shoal, Cawsand 

 Bay). A considerable number of specimens were obtained from 

 a mass of slimy sponge dredged on the Mewstone Ledge. 



Salcombe. In dredgings from the channel between Salstone 

 and Snape's Point (Journ. M.B.A., vol. 6, 1900, p. 190). 



Torquay. Fairly abundant {Elwes, Joum. M.B.A., vol. 8, 1908, p. 199). 



Amblyosyllis lineata Grube : Mcintosh, Mon. Brit. Ann. II. 1, 1908,. 

 p. 225. de St. Joseph, Ann. Sci. Nat. Zool. I. 1886, p. 187 as Ptero- 

 syllis (Gattiola) spectahilis Johnston. 



Plymouth. Common in dredgings from Millbay Channel : less- 

 numerous Queen's Ground, Mallard and Asia Shoal (e.j.a., r.a.t., 

 t.v.h.) : sometimes in large numbers in sponges from Millbay 

 Ch. (w.G.). Occurs also amongst Laminaria roots from the shores 

 of the Sound, in dredgings from outside the Breakwater, off Yealm 

 Head and occasionally on Eddystone Grounds. 



Salcombe. Dredged in the channel west of Salstone (Jounu 

 M.B.A., vol. 6, 1900, p. 190). 



Torquay. In weeds from rocks between Oddicombe and Babba- 



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



It seems probable that Claparede's PterosyUis formosa is the 

 species under consideration. Both Mcintosh and de St. Joseph 

 appear to take this view though neither adopts Claparede's name,. 

 which has priority. 



