78 ROYAL SOCIETY OF CANADA 



266. BiTTiuM ARMiL LATUM, Carpenter, 



Kept. Brit. Assoc, 186:^, p. fioo (August, 1864); and Ann. Mag. Nat. Hi.st., series :^, 

 vol. xvii., p. 276 (April, 1866). 



Not rare aiiioug sponges in rock pools and under .stone.s between 

 tide marks, near Victoria. It is not uncommon in California. 



TEICHOTEOPIS, Broderip and Sowerby, 

 267. Trichotropis cancel lata, Hinds. 



Proc. Zool. Soc, Loudon, 1843, p. 17; and Zool. Voy. Sulpli , vol. ii.. p. 39, pi. xi., 



fig. 11 and 12 (1844). 



This shell has been dredged not rarely at Yietoria. Departure Bay 

 and Comox, in 10-30 fathoms, and at a greater depth. Dr. Dawson 

 procured it at the Queen Charlotte Islands, in the Straits of Georgia, 

 (^ueen Charlotte Sound, and in most of the localities in which he col- 

 lected in 1885. Dr. Jeffreys (Brit. Conch., iv., 248) places T. cancellata. 

 in the synonymy of T . borealis, Brod. and Sby. 



268. Trichotropis inermis. Hinds. 



Proc. Zool. Soc. London, 1843, p. 18; and Zool. Voy. Sulph., vol. ii., p. 40. pi. xi., 



figs. 13 and 14 (1844). 



We have never found any shells that could be referred to this 

 species, which is on our list on the strength of a few specimens collected 

 ly- Swan at Neeah Bay. 



C^CUM, Fleming. 



269. Cecum crebricinctum. Carpenter. 



Kept. Brit. Asi^oc, 1863, p. 65.5 (Augu.st, 1864) ; and Proc. Cal. Acad. Sci., vol. ili. (18()6). 



This little shell has only been once found in British Columbia, and 

 then but a single dead sj>ecimen. This was obtained by Dr. Dawson at 

 Dolomite Narrows in 1878. 



BIYONIA, Gray. 



270. BivoNiA coMPACTA, Carpenter. 



Kept. Brit. Assoc, 186:J, p. 654 (August, 1864) ; and Ann. Mag. \at. Hist., series 3, 

 vol. xiv., p. 427 (December, 1864). 



B. compacta is generally found upon shells of Pachypoma inoequale, 

 !Uid appears to have a range coextensive with that of that species. 



Dr. Dawson, however, found it at Discovery Passage on Trophon 

 tenuisculptus, and at Quatsino Sound on Pecfen hastatus. 



