290 



RHINATREMA. 



Genus Rhinatrema. (Dum.) 



In this genus the head is lengthened, and 

 shghtly depressed, resembling in form that of 

 certain Serpents : the m.uzzle is obtuse ; the 

 teeth, both of the jaws and palate, loose in 

 structure, sharp, and pointing backwards. The 

 tongue is entire, of a velvety surface ; the eyes 

 distinct through the skin. There are no pits, 

 neither under the muzzle, nor below the eyes. 

 The body is somewhat thickened in the middle, 

 and is covered with numerous circular wrinkles. 



The only known species of this genus is the 

 Two-lined Cascilia, {Rhinatrema bivittatum, Dum.) 



1 



TWO-LINED CECILIA. 



