[TAYLOR] MARINE MOLLUSCA OF THE PACIFIC COAST 249 



261a. Trichotropis borealis, Brod. and Sby. 



It is now admitted that these two forms are distinct. They occur 

 together at Alert Bay, T. borealts being, however, much the rarer of the 

 two. So far, T. borealis has not been found in other parts of the pro- 

 vince, but T. eancellata is widely distributed and common. 



266a, BiTTiuM quadrifilatum, Cpr. 



Kept. Brit. Assoc, 18G3, p. 655 (August, 1864). 

 Jour, de Conch., vol. xii, p. 143 (April, 1865). 



Cumshewa Inlet, Skidegate Inlet and Dawbon Harbour, Q. C. I. 

 (Newcombe). The shell is figured in the "Proceedings of the United 

 States National Museum," vol. xv., pi. xxi, fig. 4. 



2666. DiALA MARMOREA, Cpr. 



Rept. Brit. Assoc, 1863, p. 657 (August, 1864). 

 Dawson Harbour, Q. C. I. (Dr. Newcombe). 



269. C^cuM cREBRiciNCTUM. Cpr. 



Dredged by Dr. Newcombe in great abundance at Cumshewa Inlet 

 in 1895. 



270. BlVONIA COMPACTA, Cpr. 



Not rare in Departure Bay. 



271rt. TURRITELLA ACICULA, StimpsOU. 



Proc. Bost. Soc N. H., vol. iv, p. 15 (1851). 



Mr. Harvey found a number of these little shells under stones at low 

 water at Shoal Bay (mainland of British Columbia) in 1897. I think 

 this is the first time that this species has been recorded from the Pacific 

 coast. 



276. ISAPIS PENESTRATA, Cpr. 



I have found this shell, not rarely, inside the dead shells of Tapes 

 staminea, and other bivalves, which I have taken from the borings of 

 Penitella penita in the soft shale of Newcastle and Gabriola Islands, 

 Nanaimo. 



280a. KissoiNA ^ewcombei, Dall. 

 l. c, p. 14, pi. i, fig. 12. 

 Cumshewa Inlet, Q. C. I., in 20 fathoms (Dr. Newcombe). 



