Clabk. — Brittle-Stars. 



PLATE 3. 



Amphiodia trychna H. L. Clark. Holotype. Tobago. 



Fig. 1. Aboral view of disk and bases of arms. X 4. 



Fig. 2. Oral view. 



Fig. 3. Aboral view of entire specimen. Two thirds nat. size. 



Ophiocryptus dubius H. L. Clark. Holotype. Tobago. 



Fig. 4. Aboral view. X 2. 

 Fig. 5. Oral view. 



Ophiostigma rugosum H. L. Clark. Holotype. Philippine Islands. 

 Fig. 6. Aboral view. X 2.5. 



Amphiodia mesopoma H. L. Clark. Victoria: Westernport. 

 Fig. 7. Aboral view. X 3. 



