TABLE OF CONTENTS. '* 



Stnu-ture anrt anatomy — Coiitinupd. 

 Perisomic plates — Continued. 



Side and coverins plates — (Jnntinued. 



Family Thalassometrida> — Contiinifd. fag''- 



Cosmiometra crassicirra ^ z. ■ ■ ■ -"- 



Cosniiouietra delicata 

 Stylonietra spinifera . 



253 

 253 



.^ttr.....,.^u..L ^u.^>i^v...„..,.. -^--i- 254 



Steuometra crista ta ■■ 



o>t;..-,u,cu.„ ...«v,^^c. 254 



Dairtiilometra hana 



256 



I'aranietni srauulata 



2^fi 

 Oceanoiuetra gigautea 



Oceanonietra annandalei 258 



Thalassometra villosa 



Tlialassometra agassizii 



Aglaometra eupedata 2oS 



Agalaometra incerta 



Family CtiaritometridER 



Crossonietra lielius 



Perissonietra selene 



Perissometra pa tula 



Perissonietra lata 



Pacliylometra distincta .-■I'swJ-v.^i 



Pacliyloraetra inrequalis ^-^Li.'-j.J'-'./^ 



Chondrometra robusta 



Calyptometra lateralis 



Glyptometra tulierosa 



Crinometra insculpta 



Monachoruetra fragilis 



Poecilometra scalaris 



Cblorometra Garrettiana 204 



Strotometra hei)buruiana - ' 



Charitoniptrn basicurva 264 



Family Antedonidse 



Antedon i)etasus jiai.^-j.Oi-i.i'^.i-i'J 



Antedon bifida jiLi.'--J_-uuij.L, 



Antedou adriatica ^__-_i-_^i 



Compsouietra lovfeni ..^Ui.i-'iiUiJ 



Compsometra incommoda -l—-: 



Toxometra paupera 



Dorometra parvicirra 



Eumetra chamberlaini f"^ 



Iridometra adrestine 



Iridometra melpomene 



Andrometra psyche 



Thysjinometra tenelloides 2 o 



Coccometra guttata 



Coccometra nigrolineata 



Coccometra hagenii 



Perometra diomedese 



I{;rytbrometra australis 



I'^rytbrometra ruber 



Hypalometra defecta ■- 



258 

 258 



258 

 258 

 258 

 259 

 259 

 259 

 259 

 260 

 260 

 260 

 260 

 262 

 262 

 263 



264 

 264 

 265 

 265 

 265 

 265 

 265 

 265 



265 

 265 

 265 



267 

 267 

 267 

 267 

 267 

 267 

 267 



