NEOZOIC INVERTEBRATES II3 
The name of the collector of this material being Kashevarof, I have 
corrected the Germanized orthography of Grewingk accordingly. 
Ostrea sp. 
Ostrea sp. (plicate) Grewingk, Beitr. NW. Am., p. 289, 1850. 
Localities. — Unga Island and the peninsula of Alaska near the Pav- 
lof volcano. 
Some plicated oysters were obtained as above which Grewingk re¬ 
garded as specifically different from the following species, of which I 
have some doubt. 
Ostrea tayloriana Gabb. 
Ostrea longirostris Lamarck, var., Grewingk, Beitr. NW. Am., p. 288, 
1850. 
Ostrea tayloriana Gabb, Pal. Cal., 11, p. 34, pi. xii, figs. 60, 60a, 1866. 
Localities .-—Unga Island and near Pavlof volcano on the peninsula 
of Alaska (Grewingk). Popof Island, 3372 and 3563. 
The most abundant fossil on Popof Island in this horizon is an 
oyster which much resembles the common species of eastern America, 
Ostrea virginica Gmelin. 
This appears to be the form which Gabb named O. tayloriana , 
though the crushed and disintegrated specimens from Popof Island are 
in such a condition as to make the determination not absolutely certain, 
though highly probable. 
Pecten (Chlamys) fucanus Dali. 
Pecten (Chlamys) fucanus Dall, Trans. Wagner Inst., in, 704, pi. 26, fig. 7, 
1898. 
Localities. — Miocene of Clallam Bay, Fuca Strait, twenty-five 
miles eastward from Cape Flattery; Popof Island, Alaska, 3563. 
Mytilus middendorffi Grewingk. 
Mytilus middendorffi, Grewingk, Beitr. NW. Am., p. 287, pi. vii, figs. 3a- 
3c, 1850. 
Localities. — Unga Island, and on Kadiak Island near Cape Tonki, 
Igatskoi Bay (Grewingk). 
A peculiar Mytilus with the distal portions of the valves sculptured 
by two or three broad plications. It is represented in the Pliocene 
of Oregon by Mytilus condoni Dall which is somewhat similarly 
sculptured. 
Cardium ciliatum Fabricius. 
Cardium ciliatum Fabricius, Fauna Gronl., p. 410, 1780.—G. O. Sars, Fauna 
Reg. Arct. Norv., p. 46, pi. 5, figs. 4a~4b, 1878. 
Locality . — Popof Island, 3563. 
