56 
II. SPECIES PENTACRINITES BRIAREUS. 
BRIAREAN FIVE-ANGLED LILY-SHAPED ANIMAL, 
Specific Character. 
A Crinoidal animal, having a column formed of numerous pentagonal 
joints, alternately larger and smaller, articulating by surfaces with pentape- , 
talous compressed semistriated markings. Five auxiliary arms, formed of 
much compressed suboval joints, proceeding at intervals from the column. 
Five joints of the pelvis, supporting five first and five second costal joints, on 
which the scapule affix, from which ten arms proceed, each having two hands 
formed of numerous fingers, sometimes amounting to sixteen. 
Base unascertained. 
Reference and Synonymes. 
PARKINSON'S Organic Remains, vol. 2.1. 17. fig. 15. to 17. t. 18. fig. 1. to-3, 
Knorr.—Recueil de Monumens, Supl. t. 11. 6. 
Locality. 
In Lyas—at Lyme, Watchet, Keynsham, &c: 
Description. 
In general construction and museular action 1t resembles the former species, 
but differs materially in many particulars. Its CozuMN (Pl. u. fig. 15. to 21.) 
grows sometimes to the length of several feet, having its joints in all the spe- 
cimens which I have seen, alternating, a thinner and smaller one, and a thicker 
and larger one always succeeding to each other. They articulate by pentape- 
talous striated surfaces, which are not of an ovate (as in P. Caput Medusa) 
but an almost linear form (Pr. 11, fig. 19. to 20.) the space between them being 
سس 
حم — 
