79 
II, SPECIES. PLATYCRINITES RUGOSUS, 
RUGGED, BROAD-PLATED, LILY-SHAPED ANIMAL. 
Specific Character. 
A Crinoidal animal, with an oval column, having round side arms at irre- 
gular distances. Pelvis formed of three pieces, very flat, admitting at its upper 
surface five depressed scapule, from each of which an arm haying two hands 
with three fingers each, proceeds. 
Synonymes and Reference. 
G. CumBERLAND, in Trans. of Geol. Soc. Vou. v. t. 5. fig. 10. 
Locality. 
In Mountain Limestone at Caldy Island, on the south coast of Wales; and 
at the Mendip Hills. 
Description. 
Its column (fig. 11. to 16.) is of a similar figure to that of the former spe- 
cies, but of a superior size. The exterior tubercles on the columnar joints are 
also placed near one end of the greatest diameter of their elliptical circumfer- 
ence. They are sometimes depressed at their summit, showing a tendency to 
form new auxiliary side arms. 
The Petvis (fig. 2. to 6.) is flat, considerably extending beyond the dia- 
meter of the column, having at its lower surface the impression for the pur- 
pose of articulation comparatively small. 
