25. CKRATOl'TERA. 497 



3. Dicerobatis eregoodoo. 



Eregoodoo tenkee, Rmsell, p. 5, pi. J). 

 Dicerobatis oregoodoo, Cunt. Mai. Fish. p. 438. 

 Ceplialoptera uregoodoo, Dumcril, Ehuiuiobr. p. G5;>. 



Teeth iiubriciito, those of the upper jaw in from SO to 90 series ; 

 each tooth about tw-ice as broad as long, with one or two points be- 

 hind. The band of teeth terminates later.iUy at a short distance 

 from the angles of the mouth. Body and tail smooth. Tail with- 

 out spine. 



Indian Seas. 



a. Stuffed, 34 inches broad. Presented by T. C. Jerdon, Esq. 



4. Dicerobatis kuhlii. 

 ?? Raja manatia, Laci'p. i. p. IGO, pi. 7. fig. 2. 



?.'' banksiana, Lacip. ii. p. llo, pi. 5. fig. 3. 



Cephaloptera kuhlii, MM. ^- Henle, p. 185, taf. .'lO. fig. 1 ; Bleek. 



Act. Soc. Sc. Indo-Xeerl. iii. Amhoina, ix. p. G ; Diimdril, Elasmohr. 



p. 054. 



Teeth tessellated, those of the upper jaw in about 34 series, each 

 tooth being much broader than long, and slightlj- crenulated behind. 

 The band of teeth terminates laterally at some distance from the 

 angles of the moutli. Body and tail smooth. Tail scarcely as long 

 as the disk, without spine. 



Indian Ocean and archipelago. 



a. Half-grown : stuffed. From the Collection of the Zoological 



Society. — Type of the species. 

 h. Young. Zanzibar. From Lieut. -Col. Playfair's Collection. 



5. Dicerobatis olfersii. 



? Cephalopterus hvpostonuis, llancroft, Proc. Comin. Zool. Soe. 1830, 



p. 134, or Zool. Jouni. v. p. 400, pi. L. 

 Cephaloptera olfer.sii, Miill. Ahhaiull. Ah. Wm. Bcrl 1834, p. 311; 



Mull. <5- Henle, p. 185 ; Dum^ril, Elasmohr. p. G57. 



Teeth tessellate, those of the upper jaw in about 40 oblique 

 series ; they are scarcely broader than long, subtriangular, with the 

 point directed backwards. The band of teeth reaches only to the 

 middle of each of the lateral halves of the jaw. The middle of the 

 back with extremely minute tubercles. 



Brazil. 



25. CERATOPTERA. 



Ceratoptera, Miill. i\ Henle. 



Head free from the pectoral fin, truncated in front, on each side 

 with a horn-like appendage pointing forward or inward, which is a 

 cephalic portion of the pectoral fin. Mouth antenor. wide. Teeth 

 in the lower jaw only, very small. Tail very slender, with a dorsal 

 fin between tbe ventrals, and without spine. 



Tropical and temperate seas. 



VOL. VIII. 2 K 



