¢ fay is , 
54 % 
42 
toad or frog, with a narrow raised rim on the uppe 
and under-lip. Below the chin there are no pustula- 
tions. Cheeks small, triangular, and separated bossa 
the front by a deep, rectilinear furrow; the eyes in 
our specimen are much injured, but they are large, 
and near the upper angle of the cheeks. Middle lobe 
with a series of distinct double articulations. Lateral 
lobes wider than the middle lobe, ribs deeply grooved 
near their insertions articulations of the abdomen 
twelve; of the tail ten. Length four inches and a 
half; breadth of the buckler nearly two inches. 
This fossil was presented to me some time since 
by Thomas P. Johnson, Esq., who mentioned that it 
was found in New Jersey, but that he could not learn 
its precise locality. Near Patterson, in that. State, 
some ‘trilobites have been discovered—perhaps the 
C. Bufo may have been derived from that locality. It 
is composed of a dark greyish limestone, easily cut 
with a knife. 
CatyMENE Buro. Variety, Rana. Cast Nos. 11 & 12. 
my v 5 " ‘ b 
This fine specimen differs from the one above de- 
scribed, in having the front of the buckler rather 
smaller, and of a different contour. The whole of 
the shell is also covered with granulations, which | 
only appear on the head of the others this, however, 
may be only an imperfection in the specimens in our 
cabinet. jai 
% 
iy % sat pet b) > ai omy 
I am indebted to the jl inate for chi hel > 
nals of the models Nos. 11 & 12. They were found : 
