INVERTEBRATE EUCOELOMATE5 



257 



Figure 15.2 HolothuroJdian types: 1, Stkhopus (to 18 inches); 2, Psolus (x )), a creeping or 

 armored sea cucumber; 3, tep/osynapta (to about 12 inches); 4, Thyone (to obout 10 inches); 3, Molpa- 

 dia {x 1), a tailed sea cucumber; 6, Cucumorjo (to about 10 inches). (Modified from various sources.) 



