APIOCRINITE OF THE CHALK. 291 
taken for a distinct type, and named “Stag’s-horn Encrinite.” * 
_ The specimens figured Lign. 93, show the essential characters 
_ of this crinoid ; when perfect, this species must have borne 
: a general resemblance to the Pear Encrinite of Bradford. 
' Lien. 93. APIUCRINITES. Chalk, Lewes. 
Fig. 1.—APiocrINUS ELLIPTICUS, x 3. 
la.—Part of the elliptical portion of the column, with a side-arm. 
16.—Portion of the same, magnified. 
lc.—The articulating surface of an ossicle. 
2.—Ossicle of A. flexuosus. (M.D’Orbigny.) | 
3.—Portion of the cylindrical stem. 
_. Bovuraueticrinus (D’Orbigny). Lign. 91, fig. 11.—De- 
tached ossicles of other species belonging to the same genus, 
or to allied genera, are frequently met with in the Kentish 
and Sussex chalk. A common form is that figured in Lign. 
91, which is part of the receptacle of a crinoid, named as 
above ; it differs from the other Apiocrinites of the chalk 
in the articulating surfaces of the ossicles not being radiated, 
* Pict. Atlas, pl. xlvii. fig. 31, p. 113. In the same plate there are 
figures of several specimens of detached portions of the stem of this 
_ Species from the Kentish Chalk. . 
