﻿EXPLANATION OF PLATE IL 



Fig. I. Payascylliiim variolatum, Dumeril. About two- 

 sevenths natural size. 



,, 2. ParascyUium ferruguineum, sp. nov. About two- 

 sevenths natural size. 



,, 3. Scyliorhmus vincenti, Zietz. Nearly one-half 

 natural size. 



