THE MEDUSA'S HEAD. 



Pentacrlaus Europxus. f. e. Larva of Comatula.) MEDUSA '5 HEAD. Pcatacrlnus Ctput Medium. 



The smaller figure represents a being discovered by Mr. Thompson, and called by him 

 Pentacrinus Europ&us. This little creature is, when full-grown, barely three-quarters of 

 an inch in height, and with a stem no thicker than sewing silk. Without entering into 

 the many and interesting details of structure, development, and the habits of this 



