RAID^. RHINOBATINiE. 32 1 



^TOBATis Muller and Henle. General structure of 

 Myliobates, but the lower jaw projects considerably 

 beyond the upper. 



A. Indica. Russell, i. pi. 8. 



Pterocephala Sw* Resembling Ceratoptera and Rhi- 

 noptera, but the mouth is placed on the under side^ 

 and the teeth are small, pointed^ and tuberculated ; 

 the lobes of the head are porrect, and do not appear 

 to perform the office of fins. 



P. Giorna. Lac. v. pi. 20. 3. 



3. SuBFAM. TORPEDIN^. Torpedo Rays. 



Head excessively large, surrounded by the pectoral fins, 

 so as to form a circular disk ; tail fleshy^ not longer 

 than the body, and bearing the ordinary fins j mouth 

 beneath. 



Torpedo Linn. With two dorsal fins. 



Torpedo electrica Auct. 



Temera Gray. General form of Torpedo, but desti- 

 tute of dorsal fins. 



T. Hardwickii. Gray, Ind. Zool. 



4. SuBFAM. SQUATIN^E, 

 Head moderate, obtuse ; the mouth placed at the ex- 

 tremity of the snout ; pectoral fins large, cut out in 

 front, so as to allow the free motion of the head. 



SquatiNuE Dum. Form somewhat shark-like ; mouth 

 furnished with short cirri ; margin of the pectorals, 

 and sometimes the body, armed with small spines. 



S. Europaea. Bl. 116. Dumerilii Le Sueur. Vol. I. fig. 23. 



5. SuBFAii. RHINOBATINiE. 

 Muzzle generally lengthened and pointed ; but not so 

 long as the body. 



Rhinobates Lac. Head and pectorals united, and as- 



* Cephaloptera Dum. See Vol. I. p. 174. 

 VOL. II. Y 



