80 ROYAL SOCIETY OF CANADA 
ISAPIS, H. & A. Adams. 
276. ISAPIS FENESTRATA, Carpenter. 
Rept. Brit. Assoc., 1863, p. 656 (August, 1864) ; and Ann. Mag. Nat. Hist., series 3, 
vol. xiv., p. 429 (December, 1864). 
This species was “very rare” in Swan’s collection from Neeah Bay. 
It has not been found since except at Clayoquot Sound, where a few 
specimens were obtained last year in shallow water by Dr. Newcombe. 
ALVANIA, Risso. 
277. ALVANIA compacta, Carpenter, sp. 
Rissoa compacta, Cpr., Rept. Brit. Assoc., 1863, p. 656 (August, 1864); and Proc. 
Acad. Nat. Sci. Phila., 1865, p. 62. 
278. ALVANIA FILOSA, Carpenter. 
Rept. Brit. Assoc., 1863, p. 656 (August, 1864); and Ann. Mag. Nat. Hist., series 3, 
vol. xv., p. 28 (January, 1865). 
279. ALVANIA RETICULATA, Carpenter. 
Rept. Brit. Assoc., 1863, p. 656 (August, 1864); and Ann. Mag. Nat. Hist., series 3, 
vol. xiv., p. 429 (December, 1864). 
280. ALVANIA CASTANEA, Moller, sp. 
Rissoa castunea, Moller, Index Moll. Greenl., p. 9 (1842). 
Our four species of Alvania are found under stones, or at the bases 
of sponges, at low water, but from their small size are easily overlooked. 
I have found the first three on many occasions at Victoria, Salt 
Spring Island and Nanaimo. 
Dr. Dawson obtained a few specimens of compacta and _ reticulata at 
the Queen Charlotte Islands, the former species at Dolomite Narrows, 
and the latter in Virago Sound. 
À. castanea is known from this province by a single specimen taken 
by Dr. Newcombe, in Clayoquot Sound. This species seems to be inter- 
mediate, as to sculpture, between A. filosa and A. reticulata. 
BARLEEIA, Clark. 
281. BARLEEIA HALIOTIPHILA, Carpenter. 
Rept. Brit. Assoc., 1863, p. 656 (August, 1864) ; and Journ. de Conch., vol. xii., 
p. 144 (April, 1865). 
Common among corallines in tide pools near Victoria and probably 
all along the coast. 
The single specimen dredged by Dr. Dawson in Freshwater Bay, 
