2G7 

 2U7 

 268 

 208 

 268 

 270 

 270 

 270 



X TABLE OF CONTENTS. 



StriR'turt' iuul anatoui.v — Coiitimu'il. 

 IViisomic plates — Coiitiiiuoil. 



.Side and coveriiiK plates — Coutiiuicd. 



Family Antedoiiklis — Continued. ^f-^f.^ 



Nanometra bowersi ■- • 



Nanometra clymene^ ^-uli^j— ■ — -^-^ 



Heliometra maxima ^__^^_!- — -_: 



Hellomptra glaeialis i-Uxij.^ 



PromacLocrinus kevgulensis 



Antbometra adriani u-i— ^^ — _:_---;- — ; 



Florometra marise _^^_L— Uiii^Kj.aJ^-i.J.l 



Florometra laodice :i;::-^-__ii'i_i-— i 



Florometra asperrima i_L:_.^_-.:__x^ji.i.- 270 



Florometra serratissima 271 



Florometra magellanlca _•- - 271 



Cyclometra clio 271 



Sarametra triserialis u- _^-- 271 



Zenometra columnaris 271 



Psatliyronietra borealis 271 



Psathyrometra fragilis .tl , -Sj-uijii-Uij-J— -. 271 



Psathyrometra autaretica -^i.d-^Li—i-uu,^iiJ^i^^-'-x 271 



Psathyrometra gracillima ^^ul-t — -±^1.1:1:^:^11^-^ 271 



Eiimorphometra concinna ^_ii.^ — -^^.^u^^ili^^ 271 



Leptometra celtica -_:.__. : 272 



Leptoiuetra phalangium 1 272 



Notocrinus virilis ^ 272 



Isometra vivipara i^u-^u^'i-!-_^xUuu--iiJUi-iu^ 274 



Hathromctra prolixa di^i^L'_L^a-'i<L!Li.'_.! — 274 



Hathrom(>tra tenella 274 



Hathrometra sarsii 275 



Fariometra explicata 275 



Trichometra cubensis 275 



Trichometra vexator 275 



Tbaumatometra nutrix i._ — ^__iii.j_j 275 



Tbaumatometra tenuis ■i^uL__2i_<-iii.'ii'- 275 



Family Pentametrocrinidje :_-__ — _ 275 



Tbaunintocrinus rugosus 275 



Thaumato(-rinus borealis l_ 275' 



Pentametrocrinus japouicus l-j^ iubti 275 



Peutametroerinus tuberculatus _^ ^b!.'±'--:^±-±: 277 



Pentametrocrinus varians _^ __ __ 277 



Family Atelecrinida _ __ 277 



Atelecrinus sulcatus 277 



Tentacles 291 



Ruhambulacra! plates 294 



Visceral skeleton 294 



Inorganic constituents of skeleton of recent crinoids 296 



Disk __— j___ 302 



Organic base of the skeleton ^^u_, 313 



Connective tissue 313 



Pigment 314 



Visceral mass 314 



Body cavity , 315 



Alimentary canal 316 



Chambered organ 320 



