[TAYLOR] MARINE MOLLUSCA 87 



for descriptions of nearl}- allied forms, see Dall (in Amer. Jour. Concli., 

 vol. v., p. 140 et se</.), '•' Materials for a Monograph of the Familj^ 

 Lepetida>." 



LKPTOTHYEA, Carpenter. 



304. Leptothyra Carpenter:. Pilsbry. 



= Leptothyra .tanguima, Cpi-., iion Liiine. 



Not common in the southern part of the province. I have taken it 

 alive between tides at Victoria, and so has Dr. Newcombe, and Prof. 

 Macoun found it in a similar station at Sooke. 



Dr. Dawson dredged it in several Queen Charlotte Island localities 

 and also in the Queen Charlotte and Quatsino Sounds. He also found it 

 between tides in .Johnston and Broughton Straits, in the Goletas 

 Channel, and on the east side of (^ueen Charlotte Sound . 



It is very common in the little baskets of dead shells that the 

 Iiidians from northern points bring to Victoria for sale, but I do ni)t 

 know the exact locality whence these are obtained. 



305. Leptothyra bacula. Carpenter. 



Lrplotiy.r haciila, Cpr.. Rept. Brit. A.s.soc, 18(5:3, p. 652 (An^tist, 1S64) : and Pnx;. 

 Cal. Acad. Sci., vol. iii., 1865. 



This little shell, which is not rare to the south of us, has not been 

 found in British Columbia except by myself, and I have taken two 

 specimens only, near Victoria. 



PACHYPOMA, Gray. 



306. Pachypoma in.equale, Martyn, sp. 



TroeliHS inirqualis. Mart., Uuiv. Conch., vol. i., no :{1, pi 8, t\^ 4 (17s'4). 

 = T. gibberosus, Cheni. (1788). 



This is a species which in British Columbia is confined to the north 

 and west. It was reported by Dr. Dawson, ' Common on rocks at low 

 water" at the Queen Charlotte Islands ; and again, " On rocks and kelp 

 at a little below low-water mark in Quatsino Sound, abundant in some 

 localities." It has been taken also on the west coast of Vancouver 

 Island by Dr. Newcombe and others. 



Very often groups of Bivonia compacfa are attached to specimens of 

 this shell. 



The opercula of this species are commonly used by the Indians for 

 ornamenting wooden and other wares. 



Dr. Carpenter adopted Chemnitz name, being apparently not quite 

 convinced that our shell was the one described and figured by Martyn 

 and which Avas said to inhabit the Friendly Islands. 



