380 Mr. A. Alcock on the Bnthjhial Fishes 



Batoidei. 



Family Rajidae. 



Eaja, Cliv. 



Raja mamillidens, sp. n. 



All tlic tissues fragile. Snout short. Disk, inclutliug- the 

 ventrals, half the total length, its breadth the same ; in shape 

 pubquadrangular, with rounded pectoral angles and snout ; 

 the whole of its upper surface, including eje-covers and fins, 

 densely covered with acuminate granules. The tail similarly 

 covered, on its upper surface and sides in the anterior half, 

 everywhere, including the dorsal and rudimentary caudal fins, 

 in its posterior half. Large recurved spines, one above each 

 angle of each orbit, one inside each inner spiracular angle, one 

 or two on each shoulder-girdle, and thirty in a row down the 

 middle dorsal line as far as the first dorsal fin. Under sur- 

 face of disk, ventrals, and anterior half of tail perfectly smooth. 

 "Width of the interorbital space equal to the length of the 

 orbit and nearly twice the major diameter of the spiracle. 

 Interval between the outer edges of the nostrils greater than 

 the interval between the nostrils and the tip of the snout. 

 Mouth crescentic. Teeth in a pavement, showing twenty-four 

 oblique rows in the upper and eighteen in the lower jaw ; 

 each tooth with a broad globular base and a gently pointed 

 mamillary summit. Dorsal fins adjacent but separate. 



Colour " uniform jet-black throughout " {P''of. Wood- 

 Mason) . 



One female specimen, 11^ inclies long. 



Hah. Gulf of Manaar, lat. 6° 29' N., long. 79° 34' E., 

 597 fathoms. 



ACANTHOPTERYGII, 



Family Berycidae. 



Trachiciitiiys, Shaw. 



Trachichthys intermedlus^ Hector. 



TrucMchthys intermedius, Hector, Tr. New-Zealand Inst. vol. vii. 

 p. 240, pi. xi. tig. 18 a ; Giinther, Zool. ' Clialleuger ' Exp. vol. xxii. 

 p. 24, pi. V. tig. D. 



One specimen, from the Bay of Bengal, lat. 19° 35' N., 

 long. 92° 24:' E., 272 fathoms j bottom-temperature 50° Fahr. 



