ACTINIAD.E. 



A. cereus. Fig. 37. 

 Tuedise. 



27 



Adamsia (Forbes). Body adherent to the mouths 

 of univalve shells, gradually expanding laterally, 

 till the two sides meet on the opposite lip of the 

 shell, and unite with a suture : tentacles imper- 

 fectly retractile, short, surrounding a linear mouth. 

 A. palliata. Fig. 38. 



Corynactis (Allmann). Body adherent, not para- 

 sitic, cylindrical ; tentacles retractile, each with an 

 enlarged globose or two-lobed tip. 



