




14 
8 Fingers formed of two series of joints. . ۱ TI. Gen. ENCRINITES. 
Column round. | ` n 
o Alimentary canal round. | 1 Sp. maniliformis. 
LLL OL LA LOL ODL OL LOE‏ ہے ےصے وی 
TI, Drvision. SeMIARTICULATA. Plate-like joints form- 
ing the superior cup-like body of the animal, arti- 
culating imperfectly to each other. 
A Pelvis formed of five joints 
:@ Supporting five costal plates. 
.& Column .not:enlarging. 
.a Fingers formed of a single series of joints. 
* Column round. 
:0 Alimentary canal round. ۱ 
-$ Articulating surface of .columnar joints 
radiated. . 
+ Auxiliary side arms round. 
£ Auxiliary side arms placedirregular. IV. GEN. POTERIOCHINITES. 
1 Joints of fingers thick. - . 1 Sp. crassus. i 
2 Joints of fingers slender. 2 Sp. tenuis. 
PLO دي سے‎ LLL LIL LLL LIL OL DLO LL PEPPER 
IH. Divisıox. INARTICULATA. Plates forming the su- 
perior cup-like body of the.animal, adhering by 
sutures, lined by muscular integument. 
N. B. Ina young state PorERIOCRINITES TENUIS may be erroneously 
considered as ‘belonging to this family, on account of .the 
undeveloped state of the articulations. 
¿A Pelvis formed of five plates. 
:9 Supporting five costal plates. 
a Column not enlarged. 
a .Fingers:formed of a single series. of joints. 
5 Column round 
-œ Alimentary canal round. 
ې‎ Articulating surface of columnar joints.ra- 
diated. ` 
ې‎ Auxiliary side arms round. 
ተ Auxiliary side arms placed:irregular. VI. Gen. CYATHOCRINITES. 
