Miscellanies. 379 
Abdomen and tail wanting in our specimen, believed to be tuber- 
cular throughout—(as a fragment presents that appearance.) 
Breadth of the head one inch and a quarter; length three quarters 
of an inch. 
(2.) CERATOCEPHALA CERALEPTA. 
Communicated to the Western Academy of Natural Science at Cincinnati, April 
14th, 1838, by Joan G. Antruony. 
Ceratocephala ceralepta.—Clypeo antice rotundato, subplano, 
granulato. 
Margine crenulata. 
Cornibus prorsum expansibus et gracilibus.* 
The buckler is semi-lunate, surface covered with fine granulations 
resembling shagreen ; its margin is raised, presenting a rounded rim, 
over which pass two antenna, distant from each other where they 
pass over, about one fourth of an inch. These antenne extend 
one third of an inch beyond the rim, and 
only one third of a line in diameter, forming a 
character from which we derive our specific 
name, ‘ ceralepta” (slender horned) ; their ex- 
tremities are broken off, and it would appear 
that they have been several lines longer; they 
diverge a little at their extremity, being about one line more distant 
there than at the margin of the buckler; they are inserted about one 
line within the rim. Between the horns there is a triangular process 
extending from the rim back as far as their insertion; this has two 
deep sulci on each side, separating it from the antenne. No abdomen 
or tail has yet been found, which could be identified as belonging to 
this species. 
Only two specimens are known to have been found, both by my- 
self. They were discovered among the rubbish thrown down from a 
quarry, half a mile from this place. Millions of fragments may be 
found there of Calymenes, Isoteli, &c., and we may hope a more per- 
fect specimen of our own species. 
When first shown to some scientific friends, it was pronounced a 
part of Ceraurus pleurexanthemus, and Dr. J. Green so judged it from 
an imperfect cast shown him. Those who have since had an oppor- 
tunity of comparing my specimen with a Ceraurus pleurexanthemus 
ace 
SF 2. 
* Cabinet of John G. Anth 
t 1. Under side of the Stik a Ceratocephala ceralepta.—2. Upper view of an- 
ther specimen. The color of the fossil is a dark brown, nearly black 
