PLATE LXXXVIII. 
Page 
Figs. 1-5. HYMENASTER CARNOSUS, 0. sp. . : : . 504 
. Abactinal aspect ; natural size. 
. Actinal aspect ; natural size. 
. A portion of the supradorsal membrane ; magnified 8 diameters. 
. Mouth-plates ; magnified. 
. Adambulacral plates and adjacent portion of the actinal surface ; magnified 
4 diameters. 
