[TAYLOR] MARINE MOLLUSCA 69 



variety that was named N. Gibhsii by \V, Cooper is the common form 

 between tides in Plsquimalt harbour. 



ASTYEIS, H. and A. Adams. 



230. AsTYRis TUBEROSA, Carpenter, sp. 



Anif/cht tubcroKd, Cpi\, Rept. Brit. Assoc, 186:^, p. 6(52 (Aufi;ust, 1S04) ; and Ann. Mag. 

 Nat. Hist., series 3, vol. xv., p. ;i98 (May, 1.S65). 



Dr. Carpenter, on p. 628 of his " Supplementary Report," writes of 

 the present species as " rare " among Swan's Puget Sound and Vancou- 

 ver Ishmd shells, and on page 662 of the same report he places it in the 

 Vancouver column. 



In his description of this s^iecies, however, in the Annals and Maga- 

 zine of Natural ITistory, he makes no mention of any locality for the 

 shell north of Monterey. Perhaps the name should be struck off our 

 lists, for the species does not seem to have been found in the province 

 since Carpenter's time. 



231. AsTYRis CARiNATA, Ilinds, sp. 



CJohnnbella carhuiiii , Hinds, Zool. Voy. Sulpli., vol. ii., p. Ht), pi. \., figs. 15-16(1844). 



— C. gausajjata, Gould, 1850. 



— C. Hindsii, Reeve. 



C. gausapata is the northern form of carinata. The species is com- 

 mon, and is found between tides or just below low- water mark all 

 through the province. Dr. jSTewcombe, in his Catalogue, confuses this 

 species with the next, which is, as far as I can see, undoubtedly distinct. 



NITIDELLA, Swainson. 



232. NiTiDELLA GouLDii, Gould and Cpr. 



Proc. Zool. Soe., London, 18.56, p. 208. 



This is a much larger shell than the last named, and is further dis- 

 tinguished by the possession of a thick and rough epidermis. It is 

 generally obtained by dredging in ten to twenty fathoms, and has been 

 titken by myself and others abundanth^ at Victoria and Departure Bay ; 

 also on the west coast of Vancouver Island, b}' Dr. Newcombe, and in 

 many northern localities by Dr. Dawson. 



Tryon included this species in the synonymy of Astyris carinata, and 

 Dr. Dall has also expressed the opinion that they belong together. I 

 still think, however, that the species are distinct, as I have seen no 

 approach to an intermediate specimen. 



Mr. E. A. Smith has redescribed this shell undel- the name Colum- 



