70 
Natural History 
O. interfossa Cpr. IB, 21. 
Vic., and Esquimalt Harbour, abundant. Clayoquot Sd., (O.F.N.) 
Johnstone St., Goletas Channel, Quatsino Sd., and Q.C.I., (G.M.D.) With 
the former, but more abundant. 
Genus Pterorhytis Conr 
(Nom. Cerostoma pre-occupied. [W.H.D.]) 
P. foliatus Gmelin. 56. 
Vic., not plentiful, (N.H.S., C.F.N., <fec.) Pender Island, abundant, (C.F. 
N.) Clayoquot Sd., (C.F.N.) St. of Georgia, Johnstone and Broughton Sts., 
Goletas Channel, Q.Ch.Sd., Discovery Passage and Q.C.I., (G.M.D.) Low 
water to 10 fms. 
Genus Trophon Montfort 
T. rnulticostatus Esch. 52. 
Vic., not rare, (N.H.S., G.W.T., C.F.N.) Q.Ch.Sd., Johnstone St., (G.M.D.) 
Low water to 20 fms. 
T. Orpheus Gld. 60, 62. 
Vic., the most abundant species of Trophon, (C-F.N.) Dep. Bay, (C.F.N.) 
Q.Ch.Sd., and Q.C.I., (G.M.D.) 10 to 30 fms. 
Mr. Dali, (39, p. 303) says, that T. Stuarti , Smith, “is a fine pale specimen 
of the Alaskan and Oregonian T. Orpheus ” T. Stuarti is a very rare var- 
iety at Victoria, and I have only collected one living specimen of it to more 
than one hundred of T. Orpheus. 
T. Stuarti E. A. Smith. 91. 
Vic., (J. Vidler, G.W.T., C.F.N.) Dredged in 20 fms. 
Type specimen two and one-eighth inches in length Mine is one inch and 
three-quarters. The longest T. Orpheus I have seen is just one inch long ; 
Dr. Gould’s type measuring half an inch. 
T. tcnuisculptus Cpr. 
Vic., rather rare, (G.W.T., C.F.N.) Quatsino Sd., St. of Georgia, Sey- 
mour Narrows, Goletas Channel, Discovery Passage. Johnstone St., QCh.Sd., 
Quatsino Sd., and Q.C.I., (G.M.D.) 
T. Dalli Kobelt. 37, 35, 39. 
Vic., (Richardson, G.W.T., C.F.N.) 
Described in Proc. Cal. Acad. Sci., 1877, by Mr. Dali, under the name of 
T. muriciformis , Dali. Re-named Dalli by Kobelt on account of the exis- 
tence of a shell, Trophon , or Eu pleura muriciformis. ( See Dali, 39, for 
additional information as to this last species, and for illustration. PI. IV., 
fig. 6.) 
