‘ 39 
but little doubt that they w were derived from the same 
place. | 
Catymene Macroputruatma.* Brongniart. Cast No.9. 
Clypeo antice, caudaque Lag ete i Sa tii oculis 
magnis exsertis. 
This species, according to Al. Brongniart, who first 
described it, is remarkable for the magnitude and 
protuberance of its eye-shaped tubercles, and by the 
prolongation of the anterior portion of the buckler, 
in the form of a snout. 3 | 
The back is marked by 12 or 13 articulations, 
which are thicker than those of the tail. The tail is 
short, pointed, and without expansion. 
The middle lobe, or front of the buckler, in this 
calymene, is said by Brongniart to be marked on 
its sides by three oblique plicz or wrinkles, but we 
have not been able to discover this character in any 
of the specimens to which we have accesss neither 
do they exhibit any remarkable prolongation in the 
anterior portion of the buckler, as stated in his spe- 
cific character. The specimens which we have exa- 
mined, agree pretty well with the representation he 
has given of the C. Macrophthalma, Plate I. fig. 5. A. 
B. & C. made from a drawing by Mr. Stokes, from 
a fossil found in Coalbrookdale, (Eng.) : 
This trilobite is common in several parts of the 
* From the Greek for ‘‘ Great eyes.” 
