ON MOLLUSCA OF THE WEST COAST OF NORTH AMERICA. 627 
variations of form in large numbers of individuals, but by the discovery of 
several new species and the addition to the district-fauna of many others. 
The duplicates are made-up in series for distribution by the Smithsonian 
Institution ; and, though of the worst quality from a “ collector’s”” point of 
view, they will be found very serviceable by real students, being carefully 
named in accordance with this Report. He has now received a dredge, con- 
structed for him by Dr. Stimpson; and if he succeeds in training the young 
Indians to use it, there is little doubt that a rich harvest of fresh materials 
will shortly be obtained. Some of the collections were made on the neigh- 
bouring shores of Vancouver’s Island, among which was a large series of 
Pachypoma gibberosum, Chem., with attached Bivonia, both of an essentially 
Eastern Pacific type, the former having been brought from Japan by Mr. A. 
Adams. The Indians have taken a fancy to the opercula of this shell for the 
purpose of ornamenting their canoes. As it is an article of trade among 
themselves, it is remarkable that so large ashell should have so long escaped’ 
the notice of collectors. Dead specimens have been washed-up in California ; 
but it is not known even to enter the Straits of De Fuca alive. The shore- 
pickings of the Indian children, which have already added 25 species to 
science, are singularly free from ballast-importations, although they present 
a few (supposed) extra-limital shells, probably washed-up by the ocean 
currents. The following are the species new to the Vancouver fauna; the 
remainder will be found tabulated in the 7th column of the general Table, 
par. 112, infra. 
. Waldheimia Coreanica, valves. 
. Aylotrya pennatifera, teste Jeffr. 
. Clidiophora punctata, one worn valve. 
. Macoma ?edentula. Two living shells may be the young of this species, or an 
extreme var. of inquinata. 
Mera salmonea. Plentiful. 
Angulus variegatus. Rare. 
Semele rubrolineata. One large valve may belong to this species, or (more 
probably) be distinct and new. 
. Standella ? Californica, One young valve. 
. Miodon prolongatus, n. sube.,n.s. Several valves of this curious shell, inter- 
mediate between Zucina and Venericardia, accord with forms not before 
eliminated, from the Coralline Crag and Inferior Oolite, 
10. Lazaria subquadrata. One valve. 
11. Diplodonta orbella. Very large valves. 
12. Kellia (var.) Chironit. A few valves. 
15. Adula stylina. Plentiful. 
14, Axinea (? septentrionalis, var.) subobsoleta. Numerous valves. 
15. Stphonaria Thersites,n.s. Rare,dead. Like tristensis and other Cape Horn and, 
N. Zealand types. The genus was not known north of Margarita Bay. 
16. Mopalia (Kennerleyi, var.) Swannii. One sp. and valves. 
17. Ischnochiton (Trachydermon) Nuttalla. One sp. 
18. Haliotis Kamtschatkana. Rare. 
19. Pachypoma gibberosum, Chem, Living; plentiful. 
20. Leptonyx sanguineus, Lim. Very plentiful. (Japan, A. Ad.;=Homalopoma 
sanguineum, antea p. 588 (nom. preoc.); Mediterranean, Phlippi.) 
21. Chlorostoma funebrale (et var. subapertum. One sp.). 
22. Calliostoma canaliewatum. Living ; abundant. 
23. Margarita cidaris,n. s. One fresh specimen, with aspect of Turcica. 
24, Margarita helicina. Very rare. 
25. Gibbula parcipicta. One sp. 
26. Gibbula succincta, n.s. Rare. 
27. Gibbula lacunata, n. s. One sp. 
NOX Pwery 
£00 
