610 ORDER CHONDROPTERYGII. 



In others, it is much farther back. 



Such are the species of the Mediterranean, R. rhi- 

 nobalus, L. ; Will. D. 5. f. 1. 



And that of Brazil, which has been said to partici- 

 pate in the properties of the torpedo, but in which 

 the electric faculty has not been verified. R. elec- 

 tric us, Schn. Mar eg. 152. 



There is a species with granulated skin \ 



Rhina, Schn., 



Do not differ from the rhinobatus, but by having a 

 short, broad, and rounded muzzle 2 . 



Torpedo 3 , Bum,., 



Have the tail short, and sufficiently fleshy. The disk 

 of their body is almost circular, the anterior edge 

 being formed by two productions of the muzzle, 

 which stretch along the side to join the pectorals. 

 The space between these pectorals and the head 

 and gills is filled on each side by an extraordinary 

 apparatus, formed of small membranous tubes, crowded 



1 N.B. The R. thouin. Lac. I. 1 3. and that of Duhamel, is a 

 variety of the common Rhinohatus. The Rata halavi, Forsk., 

 appears to me likewise not to differ from it. Add Suttivara, 

 Russel, XL 



2 Rhina ancylostomus, Bl. Schn. 72. ; the editor injudiciously 

 unites to it the Raie chinoise, Lac. I. ii. 2. which, as far as we can 

 judge by a Chinese figure, rather approaches to the Torpedos. 



3 Torpedo, rapier], ancient names of these fishes, derived from 

 their benumbing quality. 



