33 
sembling the screw stones well known in the chert accompanying the moun- 
tain limestone, 
Since the above description of Apiocrinites rotundus went to press, I have 
seen C. C. Surpexs, M. D. Uorstellungen einige, megkwuerdt gen Cegstetnegun- 
gen, '780, who represents (Px. vi. and vit.) an Apiocrinites from the Canton 
of Solothurn. ‘This figure corresponds with Horer, and suggests to me, that 
the specimens from Swisserland are, if not a distinct species, at least a variety 
of Apiocrinites rotundus. The thickness of the first coste, and less pear- 
shaped form, appear to be characteristic, Should it prove a new species, I 
propose for its name Apiocrinites elongatus. In the tabular arrangement of 
the Crinoidea it will follow A. rotundus, rendering a further subdivision 
necessary. 
II]. SPECIES APIOCRINITES ELLIPTICUS. 
OVAL COLUMN’D PEAR-LIKE LILY-SHAPED ANIMAL. 
Specific Character. 
A Crinoidal animal, having a column composed of oval joints articulating 
by a transversely grooved surface; the two upper joints of the column enlarged, 
sustaining the pelvis, coste, &c. 
The column provided with auxiliary side arms. 
The base formed by numerous irregular columnar joints sending off fibres 
for adhesion. 
