288 THE MEDALS OF CREATION. Cuap. VIII. — 
three, the second of five, the third of ten, and the others of 
many plates. | 
Eugeniacrinus ; of five pieces united into one receptacle. — 
This brief explanation will enable the student to compre- — 
hend the nature of the almost infinite variety of figure and — 
ornament which the fossil crinoidea present, and the prin- — 
ciples of nomenclature generally adopted by modern authors. 
To attempt an enumeration even of the genera would be in- 
admissible in these volumes. The late Mr. Miller’s “ Natural — 
History of the Crinoidea or Lily-shaped Animals,’* will 
afford the student satisfactory information on this class of 
organic remains. 
Aprocrinus (A. Parkinsoni). Lign. 92, fig.4. (Wond. p. | 
652.)—The Apiocrinite or Pear-Encrinite of Bradford, from 
its size, and the abundance of its remains in one particular — 
locality, is the most generally known of all the British fossil 
Crinoids. It abounds in the beds of oolite, in the quarries 
on the heights above the picturesquely situated town of — 
Bradford, in Wiltshire. The receptacle, detached ossicula, 
and the pedicle, are very common ; and in some instances’ 
the entire endo-skeleton, from the peduncle to the extremities 
of the arms, is preserved. The late Channing Pearce, Esq., — 
of Bradford, by unremitting attention to the collection of ~ 
these fossils, obtained the beautiful specimens deposited in 
the British Museum.t 
This Apiocrinite has a smooth receptacle of a pyriform 
shape, composed of large thin plates with radiated articulating : 
ST Pe’ 
Sy 
surfaces ; the stem is short and strong ; the arms are simple, ~ 
resembling those of the JZarsupite ; the peduncle spreads out — 
* Published in 1 vol. 4to. 1821, with coloured plates. 
+ A beautiful “Monograph on the Recent and Fossil Crinoidea,” by 
Messrs. Austin, in 4to. is in course of publication, of which but eight ~ 
numbers have appeared. 
+ Petrifactions, Room II. Wall-case G. 
. 
