[TAYLOR ] MARINE MOLLUSCA 87 
for descriptions of nearly allied forms, see Dall (in Amer. Jour. Conch., 
vol. v., p. 140 et sey.), “ Materials for a Monograph of the Family 
Lepetidæ.” 
LEPTOTHY RA, Carpenter. 
304. LEPTOTHYRA CARPENTERI, Pilsbry. 
= Leptothyra sanguinea, Cpr., non Linne. 
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 Queen Charlotte Sound. 
It is very common ip the little baskets of dead shells that the 
Indians from northern points bring to Victoria for sale, but I do not 
know the exact locality whence these are obtained. 
305. LEPTOTHYRA BACULA, Carpenter. 
Leptonyx bacula, Cpr., Rept. Brit. Assoc., 1863, p. 652 (August, 1864); and Proc. 
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 T have taken two 
specimens only, near Victoria. 
PACHYPOMA, Gray. 
306. PACHYPOMA INÆQUALE, Martyn, sp. 
Trochus inwqualis, Mart., Univ. Conch., vol. i., no 31, pl 8, tig 4 (1784). 
= T. gibberosus, Chem. (1788). 
This is a species which in British Columbia is contined 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 compacta 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 was said to inhabit the Friendly Islands. 
