48 



HAWAIIAN AND OTHER PACIFIC ECHINI. 



Page 

 Aspidodiadematidae Duncan (continued). 



The Genera and Species 93 



Aspidodiadeina A. Ag 93 



*Aspidodiadema nicobaricum 



Dod., Plate 50, figs. 1, 2 . . 94 

 *Aspidodiademameijerei A. Ag. 

 and CI., Plates 44, figs. 3, Jf, 



58, figs. 7,8 97 



Aspidodiadeina tonsum A. Ag., 



Plate 50, figs. S-5 98 



Dermatodiadema A. Ag 100 



Derniatodiadema globulosum A. 



Ag., Plate 60, figs. 6-10 . . 102 

 Dermatodiadema horridum A. 

 Ag., Plate' 50, figs. ii-i5 . . 102 



Diadematidae Peters 103 



Pedicellariae and Other Structural 



Characters 103 



The Genera and Species 108 



Diadema Pet Ill 



Diadema setosum Gfay .... 113 

 Diadema mexicanum A. Ag. . 113 

 *Diadema paucispinum A. Ag., 



Plate 51, figs. 1,2 114 



Diadema Savignyi Mich. , . . 114 



Diadema Peters {continued). 

 Diadema globulosum A. Ag. 



Echinothrix Pet 



*Echinothrix diadema Lov^n . 

 *Echinothrix calamaris A. Ag. 



Centrostephanus Pet 



Centrostephanus coronatus A. 



Ag., Plate 51, figs. 12-20 . . 



•Centrostephanus asteriscus A. 



Ag. and CI., Plates 51, figs. 5- 



11 ; 55, figs. 1-6; 58, figs. 1-6 



Micropyga A. Ag 



Eremopyga A. Ag. and CI. . . . 



Astropyga Gray 



*Astropyga radiata Gray . . . 



Chffitodiadema Mortens 



*Chjetodiadema pallidum A. Ag. 

 and CI., Plates 44, figs. 5, 6; 

 50, figs. 16-19 ; 56 ; 59 . . . 



Lissodiadema Mortens 



Leptodiadema A. Ag. and CI. . . 



•Leptodiadema purpureum A. 



Ag. and CI., Plates 50, figs. 



20, 21 ; 55, figs. 7-10 .... 



Plates and Explanation of Plates . . 



Page 



115 

 115 

 116 

 117 

 117 



118 



119 

 122 

 122 

 123 

 123 

 123 



124 

 130 

 130 



131 

 133 



* Hawaiian species. 



