304 



COM J' A BA ri ] 7i' A XA TOM Y 



247). Hctnvcfiinis, Ilcrpctocrinus, Calccocriims, CatiUocrinns, I'isucriiius, Hybocrinuff, 

 locriiiUH, SniniatJtocriiiuii, Bclcmnocrinus, Gastrocoma {?), Cup rrssocr inns. 



V>. Dicyclica. 



With lUcyclic base (with iufrabasals). Faiii. Dendrocrinidse : Dcndrocrinus, 

 Hoinocrinus, Poicriocrinits. Fam. Decadocrinidse : Butrijurrinus, Barycrinus, 



Fio. 248.— Encrinus liliiformis(oiii;;in;il). 

 cj, Co, Costals or priinibracliials ; /•, radials ; 

 CO, .stem ; y), piiinulaj. 



Vw. l'49. — Cyathocrinus 

 longimanus (at'ter Angelin). 

 [ir, ViMitral sac ; !, place wliere an 

 ariii-braiich ha.s been removed ; 

 r, radials ; ha, basals ; ib, infra- 

 basals ; col, stem ; x, anal plates ; 

 CO, costals or primibrachials. 



Atelcstocrinus, Decadocrinus, (jfraphiocrinus, Encrinus (Fig. 248), (without anal 

 plates, ventral sac reduced to a short cone, Trias), C'roniyocrinus, Agassizo- 

 crinus. Fam. Cyathocrinidae : Cijathocrinus (Fig. 249), Gissocrinus, Lccythocrinus, 

 Hypocrinus. 



The genus Marsupitcs from the Chalk, and the following extant families are 

 perhaps to be classed near the Inadtmiatn ; in these latter five large separate orals 

 occur, the ventral sac being reduced to an anal tube, and no anals a])pearing in the 

 dorsal cup. Holopidcc (Fig. 250) (Lias, to present time), Ryocrmkhe (Fig. 251) (Lias, 

 present time), Bathycrinidce (extant). 



