[TAYLOR] MARINE MOLLUSCA 89 



Dtiwson obtained four specimens in \^irago Sound. Like the otlier west 

 coast Trochidce this species appeai-s to be partial to Macrocystis. 



311. ( 'alliosto.ma costati-.m, Martyn. sp. 



Trochiis rosfatns. Mart., Univ. Coach., vol. i., no. ;W, pi. x., tig. .^ (17.S4). 

 ligafum, Goukl, 

 &c., &c. 



This is our common Calliosfoma and uidike the two .species above 

 mentioned is usually found between tides. The living shell very often 

 has specimens of Crepidula adunca attached to it and when dead has n<>t 

 unfrequentl}- Crepidula navicelloides within the aperture. 



312. Calliostoma VARiEijATUM, Car]»enter. 



Kept. Brit. Assoc, ISfW, p. (w2 (August, 18(51); and Proc. Acad. Nat. Sci. Phila., 



18(i.5, p. (il. 



Dr. Kennerkn* found one living specimen of this shell in Puget 

 Sound, but I can find no other record of its occurrence in British Colum- 

 bian waters. 



CAXTHAiUDUS, Montfort. 

 31'3. Cantharii)i;s pupoideus, Carpenter, sp. 



Fftu'/ld pnpoidea, Cpr., Kept. Brit. Assoc, IStW, p. ().5ti (August. lS(i4) ; and Proc. Cat. 



Acad. Sci., vol. iii. (18()5). 



This shell which Carpenter placed in Fenella, is considered by Dr. 

 Dall to belong to the subgenus Halistylus (Dall) of the genu f^ Cant haridus 

 (Montfort). It was described from specimens taken near Monterey, 

 California, and was added to our list by Dr. Dawson, who took one adult 

 living specimen at the mouth of Cumshewa Harbour in twenty fathoms. 



Last summer Dr. Xewcombe took four living specimens, and a few 

 dead ones, at Clayoquot Sound. We have not yet found it on the 

 eastern side of Vancouver Island. 



MARGARITA, Leach. 

 314. Margarita helicina. O. Fabricius. s]). 



Troc/tus hcUcinus. (). Fab., Fauna (iroenl., p. .S93, (1780). 



Fine specimens, exactly like Kuropean ones, aie common between 

 tides in a few spots in the neighbourhood of Victoria, also at Sooke 

 (Macoun). A few specimens were taken by Dr. Dawson at the Queen 

 Charlotte f.slands. and in Johnston Strait, and Queen Charlotte Sound. 



