166 PISCES. 



TRIBE II. SUB-BKACHIATI. 



Ventrals beneath the pectorals ; suspended from 

 the shoulder-bones. 



Ventrals united into a sucking 



disk 



Ventrals separate : 



Head furnished with a sucking disk Echeneidce. 

 Eyes on one side of the head ; body 



flat, unsymmetrical Pleuronectida. 



Form ordinary, symmetrical . . Gadida. 



251 



FAMILY I. CYCLOPTERID.E. 



Ventrals and pectorals united to form either one 

 or two circular disks, beneath the body, with the 

 power of adhering to foreign bodies. 



Cyclopterus (Linn.). Lump-fish. Body deep, 

 with a ridge on the back ; two dorsals ; first dorsal 

 concealed within the skin ; pectorals and ventrals 

 united into a single disk. 



C. lumpus. Fig. 251 ; J- n. s. 



