16 
## Column elliptic. 
o Alimentary canal round. 
$$ Articulating surface of columnar joints 
کا‎ transversely rideed. 
+ Auxiliary side arms round. 
ተ Auxiliary side arms placed irregular, 
1 The five scapule smooth, having 
each four fingers. 
2 The five scapula rugose, having each 
six fingers. 
4 ٤ Column pentangular. 
ooo Alimentary canal pentangular. 
$ Articulating surface of columnar joints ra- 
diated. 
+ Auxiliary side arms round, 
{ Auxiliary side arms irregular. 
j 1 The five scapulæ smooth. 
*** Column not known. — 
1 The five scapule tuberculated. 
2 The five scapule granulated. 
3 The five scapule striated. 
PL ILL صصح جو سے‎ OL جح جیا‎ ታ.ታ.ም.ቃ ቃ POETS 
IV. Division. Coapunata. The joints of the pelvis 
anchylose to the first columnar joint. 
A Pelvis formed of five joints. 
a Column enlarged at the summit. IX. 
o Alimentary canal round. 
1 Sp. levis. 
. 2 Sp. rugosus. 
6 Sp. pentangularis. 
3 Sp. tuberculatus. 
4 Sp. granulatus. 
5 Sp. striatus. 
GEN. EUGENIACRINITES. 
1 Sp. quingu angularis. 
