CONTENTS. 



,-s'' 



Echinothuridee Wyv. Thorn 



Some Anatomical Features, Plates 



60-63 



The Spines, Pedicellariae, Sphae- 



ridia, and Spicules, Plates 64-67 . 



The Systematic Position of the 



Echinothuridae 



The Genera and Species of Echino- 

 thuridae ... • 



Phormosoma Wyv. Thom. . . . 

 Phormosoma alternans de Meij. 

 Phormosoma verticillatumMort. 

 Phormosoma rigidum A. Ag. . 

 Phormosoma adenicum Dod. 

 Phormosoma placenta Wyv. 



Thom 



Phormosoma Sigsbei A. Ag. 

 Phormosoma indicum Dod. . . 

 *Phormosoma bursarium A. 

 Ag., Plates 62, fig. 2 ; 63, 



fig. 5 



Echinosoma Pomel 



Echinosoma hoplacantha A. Ag. 



and CI 



Echinosoma luculentum A. Ag. 



and CI. 



Echinosoma hispidum Mort., 

 Plates 62, i3g. 3 ; 63, fig. 4 ; 



67, figs. J^-ll 



Echinosoma tenue Pomel, Plate 



67, figs. 12-21 



Echinosoma Koehleri A. Ag. 



and CI 



Echinosoma zealandise A. Ag. 



and CI. 



Echinosoma panamense Mort., 



Plate 67, figs. 1-3 



Echinosoma uranus Pomel . . 



Page 

 141 



141 



142 



146 



151 

 153 

 155 

 156 

 156 

 156 



157 

 157 

 157 



158 

 160 



161 



163 



164 

 165 

 167 



168 



168 

 169 



Paoe 

 Echinosoma Pomel {continued). 



Echinosoma Petersii A. Ag. and 



CI 169 



Kamptosoma Mort 169 



Kamptosoma asterias Mort. . . 170 



Kamptosoma indistinctum A. Ag. 1 70 

 Asthenosoma Grube 171 



Asthenosoma varium Grube . . 172 



Asthenosoma urens Saras. . . 172 



Asthenosoma heteractis Bed- 

 ford 172 



Asthenosoma Ijimai Yush., 

 Plates 62, fig. 1 ; 63, fig. 2. 173 

 Araeosoma !Mort 174 



Araeosoma thetidis A. Ag. and 

 CI., Plates 66, figs. 6-17; 68- 

 70 176 



Araeosoma bicolor A. Ag. and 

 CI., Plates 64, figs. 1-8; 71 ; 72 179 



Araeosoma pellucidum A. Ag. 

 and CI 181 



Araeosoma eurypatum A. Ag. and 

 CI., Plates 66, figs. IS-ld; 73- 

 75 181 



Arjeosomaleptaleum A. Ag. and 

 CL, Plates 76 and 77 ... . 183 



Araeosoma hystrix A. Ag. and 

 CI 186 



Araeosoma pyrochloa A. Ag. and 

 CI., Plates 66, figs. l-I^ ; 78- 

 80 186 



Araeosoma Belli Mort., Plate Q)^, 

 fig. 5 188 



Araeosoma vioh?ceum Mort. . . 190 



Araeosoma coriaceum Mort. . . 190 



Araeosoma tessellatum Mort. . 190 



Araeosoma fenestratum Mort., 

 Plate 66, fig. 50 190 



* Hawaiian species. 



