Natural Science, vol. vii 



[Plate X. 



ASTEROIDEA AND A HoLOTHURlAN. 



Fig. I. Hymeiiaster sacculatits, Sladen ; abactinal aspect, with marsupial 

 tent in centre ; slightly enlarged. Fig. 2. Pythonaster murrayi, Sladen ; abac- 

 tinal aspect ; x •], Fig. 3. PorccUanaster cccruhus, Thorns. ; abactinal aspect ; 

 nat. size. Fig. 4. Psohts ephippifer, Thorns.; showing plates of dorsal mar- 

 supium ; x 3. 



