119 



CURIOUS MARINE lorms are legion in waters of the Gulf of California. Thou- 

 sands of specimens of animal life from tidal zones and depths of the Vermilion 

 Sea have been collected and presented to institutions for laboratory studies. 

 (1) HeUaster kubiniji. (2) Centrechinus mexicanus. (3) Clypeaster speciosus. 

 (4) Astropyga pulvinata. 



