454 TOKPKDINIDJi. 



1. Discopyge tachudii. 

 TschwU, I. c. p. 33, taf. 0. 



Spiracles without fringes. Vent in the middle of the total length. 

 Hinder and lower margins of the caudal fiu confluent. 

 Peru. 



9. ASTRAPE. 

 Astrapo, Midi. ^ Henle. 



Tail with a fold on each side. Body entirely jiaked. One dorsal 

 fin only, on the tail, without Bi)ine ; caudal well developed. Ante- 

 rior nasal valves confluent into a broad flap, overhanging the mouth. 

 Teeth pointed ; dental lamina? scarcely extending beyond the outer 

 margin of the jaws. Spiracles immediately behind the eyes, which 

 are minute. An electric apparatus between the head and pectoral 

 fin. 



Indian seas ; South Africa. 



1. Astrape capensis. 



Raja, Sjj., Gronov. Zooplnjl. no. 152. 



Raja capensis, Gm. L. i. p. 1512; Bl. Schn. p. 360. 



Torpedo capensis, Ol/ers, Turped. p. 23 ; Gmnov. Syst. ed. Gray, 



p. 13. 

 Narcine capensis, Henle, Narcin. p. .3G, pi. 3. fig. 1. 

 Astrape capensis, Midi. 1^- Heide, p. 130 ; Dumenl, Rev. Znol. 1852, 



p. 280, and Elasmobr. p. 522 : Kner, Novara, Fisch. p. 410. 



Spiracles not fringed. Vent nearer to the extremity of the tail 

 than to the front margin of the disk. 

 Cape of Good Hope ; Madagascar. 



a. Adult. Presented by Sir A. Smith. 

 h. Skin. From Gronow's Collection. 

 c. Half-grown. Madagascar. 



2. Astrape dipterygia. 



Raja dipterygia, Bl. Schn. p. 359. 



Toi-pedo dipterygia, Ol/ers, Turped. p. 25, tab. 2. fig. 2. 



Narcine dipterygia, Henle, Narcin. p. 38. 



Astrape dipterygia, Midi. 8f Henle, p. 131 ; Cant. Mai. Fish. p. 419 ; 



DumerU, Rev. Zool. 1852, p. 281, and Elasmobr. p. 523 ; Day, 



Fish. Malah. p. 270. 

 japonica, ISchkg. Faun. Japon. Poiss. p. 307, pi. 140. 



Spiracles not fringed. Vent nearly in the middle of the entire 

 length of the fish. 



Indian seas ; China and Japan. 



a-b. Adult. Pinang. From Dr. Cantor's Collection. 



c. Adult : skin. Pinang. From Dr. Cantor's Collection. 



d. HalL-grown. C!anton. From the Collection of the Zoological 



Society, 



