25. f'i:i;AToi>ri:HA. 407 



3. Dicerobatis eregoodoo. 



Eregoodoo teiikec, Russell, p. ">, pi. 0. 

 Dicerobatis erefroodoo, Cant. Miil. Fish. p. J^S. 

 Cephaloptera eregoodoo, Ihimcril, Elamiiobr. p. (V)."). 



Teeth imbricate, those of the upper jaw in from 80 to 90 series ; 

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

 hind. The band of teeth terminates laterall}' iit a slioit distance 

 from the angk^s of the mouth. Body and tail smooth. Tail with- 

 out spine. 



Indian Seas. 



a. Stuffed, 34 inches broad. Presented by T. f. Jerdoii, Kscj. 



4, Dicerobatis kuhlii. 



?? Raja manatia, Laccp. i. p. 1()0, pi. 7. fig. 2. 



?? banksiana, Lac^p. ii. p. lir>, pi. 5. fig. .'?. 



Cephaloptera kuhlii, yri'dl. ^- Heule, p. \f<~^, taf. of>. fig. 1 ; Blevk. 



Act. Soc. Sc. Indo-Xeerl. iii. Ainhuina, ix. p. ; JDiiin^ril, Elasnwbr. 



p. 054. 



Teeth tessellated, those of the iipper jaw in ahout 34 series, each 



tooth being much broader than long, and slightly crenulated behind. 



The band of teeth terminates laterally at some distance from the 



angles of the mouth. Body and tail smootli. 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 hypostomus, JUuicruft, Proc. Coiinn. Zool. Soc. ISiiO, 



p. IM, or Zool. Journ. v. p. 40!>, pi. L. 

 Cephaloptera olfersii, Miill. Ahhandl. Ah. Wi.ss. Bed. 18.34, p. .311; 



Miill. 4* Henle, p. 185 ; Dumeril, 'Elasmuhr. p. Go7. 



Teeth tessellate, those of the upper jaw in about 40 obli(]ue 

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

 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. Sf Ilenlc. 



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 anterior, wide. Teeth 

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

 fin between the ventrals, and without «pine. 



Tropical and temperate seas. 



VOL. VIII. ^ f 



