330 E. M. KINDLE 
Schuchert have been re-examined by Dr. Girty and the writer. 
They comprise specimens representing five or six species, most of 
which are common in the Upper Carboniferous fauna of Alaska. 
The specimens referred to Conchidium by Schuchert belong to the 
genus Camaro phoria and are near, if not identical with, C. margari- 
tova. This is a common and characteristic species of the Upper 
Carboniferous limestone in Alaska, not being known below it. Spor- 
ijer sp. undet. I is identical with a Spirifer collected from Carbonil- 
erous beds of Saginaw Bay by the writer, which Girty considers 
closely allied to Sp. alatus Schl. Spirijer sp. undet. II of Schuchert 
is represented only by a portion of the ventral valve, which is consid- 
erably worn. It shows traces of fine plications alternating with the 
seven or eight very coarse plications marking the surface. ‘The one 
in the sinus is quite distinct. These minor plications distinguish it 
quite sharply from S. arrecta, with which it was compared, as well 
as from other Devonian brachiopods with which the writer is ac- 
quainted. The Chaetetes sp. undet. is probably a Stenopora. ‘These 
supposed Devonian fossils all belong unquestionably to the Upper 
Carboniferous. 
CARBONIFEROUS 
The oldest Carboniferous fauna which has been found in south- 
eastern Alaska was obtained at Freshwater Bay, in the northeastern 
part of Chichagof Island. This fauna was submitted to Dr. George 
H. Girty, who states, in a report furnished the writer, that, ‘“‘ while 
not unlike the American Lower Carboniferous or Mississippian, it 
resembles, and probably should be correlated with, the Russian Lower 
Carboniferous or Productus giganteus zone, or Mountain limestone.” 
Freshwater Bay is the only locality visited where the Lower Carbon- 
iferous fauna has been found in southeastern Alaska. This locality 
is important also because the stratigraphic relation of the Lower Car- 
boniferous to the older rocks may be observed. 
On the northeastern side of the bay, and opposite the Silurian and 
Devonian limestones already described, the Carboniferous limestones 
form a low, narrow peninsula, never more than a few hundred yards 
in width, projecting out 4 miles from the mainland. The strike 
varies from N. 35° E. to N. 40° W., but generally has a northwesterly 
