362 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



Body largely smooth. Two strong preocular spines, 1 above each 

 spiracle, 1 occipital and median vertebral row begins on tail over 

 ventrals, as 13 to first dorsal and 2 in interdorsal. 



First dorsal broad, rounded, length 4 in head ; second dorsal simi- 

 lar, length 414 ; caudal low cutaneous fold from second dorsal to end 

 of tail; pectoral quite convex in outline; ventral length 2 in head. 



Rather warm brown above, with variable large paler blotches, ill 

 defined and mostly faint. Below whitish. 



Japan. Known by its long slender snout, among the Japanese 

 species. The coloration of the young suggests that of Raja henojei 

 in the obscure or pale blotches. 



U.S.N.M. No. 50813. Station 3770, Japan. Albatross collection. Length, 217 

 mm. 



RAJA REVERSA Lloyd 



Raia reversa Lloyd, Ann. Mag. Nat. Hist., ser. 7, vol. 18, p. 310, 1906 (type 

 locality: Arabian Sea off Beluchistan coast, in 820 fathoms) ; Illustr. Zool. 

 Investigator, Fishes, pt. 9, pi. 39, pi. 41, fig. 2, 1908; Mem. Indian Mus., 

 vol. 2, p. 141, 1909 (type).— Garman, Mem. Mus. Comp. Zool., vol. 36, p. 354, 

 1913 (compiled). 



Head to spiracle 5% in total length; disk 11/12 in its width, tail 

 11/10 in disk length. Snout 1% in head to spiracle, prominent, mod- 

 erately exserted; eye 6% in head, 5% in snout, 3 in interorbital ; 

 mouth width 2i^ in head to spiracle, 21/4 in preoral length, outer 

 portions transverse, curved medianly; 42 rows of teeth in each jaw, 

 median teeth long, curved, bases heart shaped; internasal l%o in 

 preoral length or 2i/io in head to spiracle, hind edge of each broad 

 flap at mouth corner fimbriate; interorbital 2I/3 in head to spiracle, 

 firm cartilaginous interspace 3%. Spiracles oblique, close behind 

 and equal eye. 



Skin over skull but not over snout, covered witli fine denticles; 

 front half or more of pectorals covered with small denticles ; 2 series 

 of larger spines on each pectoral, 1 series of about 20 opposite shoul- 

 der girdle and another of about 15 opposite eye ; large white stellate 

 spine before eye and 2 or 3 smaller behind eye ; 4 or 5 similar spines 

 in mid-dorsal line; on upper surface of tail 3 regular rows of large 

 spines, those in median row half numerous as in lateral rows and 

 sides of tail spiny; lower surface of disk and tail smooth. 



Dorsals joined basally, separated by narrow notch, caudal as low 

 fold from second dorsal; dorsals subequal, first 2% in head to spi- 

 racle; pectorals form broad rhomboid disk, front edges undulate, 

 outer angle broadly rounded, hind angle rounded. 



Upper surface when fresh pure white, passing into dark gray at 

 pectoral margins. Upper surfaces of ventrals and claspers gray. 

 Iris black, pupil milk white. Entire lower surface purplish black. 

 Length, 600 mm. (Lloyd.) 



