41 
specimen, transformed into red jasper, from Prof. 
‘Ducatel, said to be found in the United States—no — 
‘precise locality is given. Our model represents the 
animal which is supposed to be the one intended by 
Brongniart as the C. Macrophthalma of North Ame- 
rica. It is, in our opinion, a variety of the C. Bufo. 
-There can be no doubt that several species have been 
confounded under the name of C. Macrophthalma. 
The following extract of a letter from Professor 
Ducatel to the author, referring to the locality of this 
species, will be read with interest. 
“I cannot be positive as to my recollection of the 
_ locality of the fossil referred to by Brongniart and 
yourself, but believe it is one of several found by my 
friend Dr. M‘Culloh, in the neighbourhood of Berk- 
ley Springs, Virginia. I regret that I have not in 
my possession another specimen to present to you.” 
CatymMENE Buro. Green. Cast No. 10. 
Clypeo rotundato, convexo, punctatos abdominis 
articulis sexdecim; cauda attenuata; corpore plano. 
Buckler semilunate, front very large, rounded be- 
fore and arcuated at the insertion of the middle lobe; 
surface convex, and marked with numerous depressed 
pimples. Mouth large, lunate, resembling that of a 
scription of the macrophthalma, and with the above fossil from 
Dudley. We regret that the imperfection of the fossil prevents 
our giving a satisfactory cast of it. 
D 2 
