ZOOLOGY 



FIG. 191. Metacrinus interruptus. 

 After P. H. Carpenter. 



FIG. 190. Synapta inhere us. a, 

 tentacles; b, longitudinal mus- 

 cles; c, alimentary tract. 

 After Quatrefages. 



Ocean and the China 

 Sea, where they are com- 

 monly known as " t re- 

 pangs." They are cut 

 open, washed, boiled, 

 dried, and sometimes 

 smoked. They are sold 

 in Chinese ports, and 

 some species are con- 

 sidered by Chinese epi- 

 cureans as great deli- 

 cacies. Several species of 

 Holothurians occur on 

 the Maine coast. A bar- 

 rel-shaped form with a 



