320 PISCES 



well as the anal, long : chin with one or more barbules : 

 ventrals with six or seven rays. 



50. MOTELLA. Body elongated, compressed behind : 

 first dorsal but little elevated, and scarcely perceptible ; the 

 rays detached and hair-like, all, except the first, very 

 minute : second dorsal, and also the anal, long : ventrals 

 with six or seven rays. 



51. BROSMUS. Body elongated, compressed behind : 

 only one long dorsal extending nearly to the caudal : anal 

 long : chin with a single barbule : ventrals thick and fleshy, 

 consisting of five rays. 



52. PHYCIS. Ventrals consisting of only a single ray; 

 often forked : head large : body elongated : chin with one 

 barbule: two dorsals; the second, as well as the anal, 

 long. 



53. RANICEPS. Head depressed and very broad : 

 body very much compressed behind : two dorsals ; the first 

 very small, scarcely perceptible ; the second, as well as the 

 anal, long : ventrals with the two first rays elongated. 



VI. PLEURONECTID^. Body deep, venj much 

 compressed; with both the eyes on the same side 

 of the head : sides of the mouth, and generally 

 the pectorals, unequal: dorsal and anal extend- 

 ing the whole length of the back and abdomen 

 respectively : ventrals appearing like a con- 

 tinuation of the anal: branchiostegous mem- 

 brane with six rays. 



54. PLATESSA. A single row of obtuse cutting teeth 

 in each jaw ; and generally a pavement of teeth on the pha- 

 ryngeans : dorsal commencing in a line with the upper eye, 

 and leaving, as well as the anal, a space between it and the 

 caudal : form rhomboidal : eyes on the right side. 



