76 THE NAUTILUS. 
little species seems to be quite distinct from any of those de- 
scribed from the West Indies. It is quite different in shape 
and proportions from A. bermudensis Van., which is the only. 
one that approximates it in size. 
Named after the original collector, the late Thomas Bland. 
Explanation of Plate III. 
Figs. 1, 3. Ferrissia obscura (Hald.). See Naut., XX XIII, 
p. 101. 
Figs. 4, 6. Ferrissia jamaicensis Walker. 
Figs. 7, 9. Ferrissia adamst Walker. 
Figs. 10-12. Ferrissia blandi Walker. 
TWO NEW PLIOCENE PECTENS FROM NOME, ALASKA.* 
BY WILLIAM H. DALL. 
The U. S. Geological Survey has recently received from Otto 
Halla of Nome, some fossil shells from a subterranean Pliocene 
beach reached by a shaft at twenty feet below the surface near 
the Solomon River. Among these specimens were Astarte car- 
teriana Dall, a Venericardia like alaskana Dall, but much larger 
and heavier; fragments of a Chrysodomus, and two magnificent 
new species of Pecten. Pecten lioicus Dall, and P. kindle Dall, 
both markedly peculiar forms of the subgenus Chlamys, had 
already been obtained from these anciently uplifted and now 
buried beaches, and doubtless when fully explored they will 
afford many other things of interest. The characteristics of the 
fauna indicate a warmer sea than at present exists at Nome, 
and the species as a rule are larger and heavier than their recent 
or Pleistocene analogues. 
PECTEN (PLAGIOCTENIOM) HALLAE ND. Sp. 
Right valve convex, heavy, subcircular, with subequal ears, 
hinge-line wide and straight, the ears sculptured with rather 
rude incremental lines; radial sculpture of the valve consisting 
* Published by permission of the Director of the U. S. Geological Survey. 
