222 General Notes. [ March, 
pau J. oe Grammaticale de la Langue de God. Rev. AP TR: Oct. 
TON, W. G.—é pomparsive study of the Javanese and Corean Languages. F. of 
Roy. Asiatic oi Aug. 
ra maire Samoane, Rev. Linguistigue, Oct. 
OPPERT, G.—Onthe Ancient Commerce of India. Madras Y. of Literature, I. 
GEOLOGY AND PALAIONTOLOGY. 
FossıL CRAWFISH FROM THE TERTIARIES OF Wyominc.—Two 
specimens of fossil crawfish quite well preserved have been kindly 
loaned us for description by Professor Leidy, who received them 
from the fish beds of the western border of Wyoming, through 
Dr. J. Van A. Carter, of Evanston, Wyoming. Of the two speci- 
mens, the smaller presents a dorsal, and the larger a lateral view, 
both being slightly distorted by progre, the length of the smaller 
from the tip of the rostrum to the en the telson is 38 mm., and 
of the larger 53 mm. They do not differ generically from existing 
species of Cambarus, though with some resemblances to Astacus, 
but as the gills are not represented it is not possible to say to 
which ofthese two genera the species belongs; still the weight of 
characters ally it nearest to Cambarus, affinis, as seen in the long ~ 
_ var. latimanus and bartenii, but rather narrower, the lateral termi- 
nal spine being long, slender, acute. The flagellum of the second 
antenne are of the usual size, extending to the terminal fourth o 
the abdomen. The distal end of the scape of the first antennz 
reach to near the end of the last joint of the scape of the first pair, 
the species in this respect being more like Cambarus than Astacus. 
The carapace is of the proportions of living species of Cambarus. ~ 
The firsť pair of legs are rather shorter and stouter than in our 
living crawfishes, and the chelæ are rather shorter, while the 
surface of the carapace and legs is much more cọarsely tubercu- 
lated than in our Cambari, and in this respect resembles large 
specimens of Astacus fluviatilis of Europe, though the tubercles 
are larger. 
The abdomen is of the usual proportions, but the surface is 
more coarsely tubercled; the telson and broad rami of the last 
pair of feet are spined as in living species of Cambarus. It is inter- 
esting to observe that this species is nearest related to Cambarus 
afnis, which as observed to me by Mr. P. R. Uhler, who kindly 
gave me some species for comparison, is the more generalized 
American species of the genus, and probably the oldest one. 1 
would be interesting to know whether this fossil form is actually 
a Cambarus or an Astacus, and to ascertain which of these two 
genera, now restricted, the latter to the Pacific slope of the Sierra 
Nevada, the kores to the Central and Eastern zoò- -geographical 
provinces, was the first to obtain a foothold on our continent. 
There isa a probability that the present fossil form is a member _ 
