140 



HAWAIIAN AND OTHER PACIFIC ECHINI. 



Page 

 Arseosoma Mort. (continued). 

 Areeosoma gracile A. Ag. and CI., 



Plates 81, figs. 3, 4 ; 82, figs. 



6-8 191 



Araeosoma wstoni Mort., Plates 



81, figs. 1,2, 5, 6; 82, figs. 



1-4. 192 



Sperosoma Koehler 194 



Sperosoina Grimaldii Koehler . 196 

 Sperosoma quincunciale de 



Meij 196 



Page 



Sperosoma Kcehler (continued). 

 Sperosoma giganteum A. Ag. 



and CI., Plates 64, figs. 9-12; 



65, figs. 1-3 ; 83-86 .... 197 

 *Sperosoma obscurura A. Ag. 



and CL, Plates 62, fig. 4 ; 63, 



fig. 1; 65, figs. 4-14; 87-89 199 

 Sperosoma biseriatura Dod., 



Plate 65, figs. 15-20 202 



Sperosoma durum Dod 203 



Plates and Explanation of Plates . . 204 



* Hawaiiau species. 



