RAIA INORNATA. 347 



Adults brown, clouded or with scattered spots of paler brown, dingy white 

 below. Young reddish brown, with numerous spots of white and with a large 

 rounded or oblong spot of blackish encircled by a ring of yellow surrounded by 

 one of a darker yellow; beneath white, posterior margins of pectorals brown, 

 and those of ventrals darker brown. 



Total length of specimen described 30g, snout to pores 18, snout to mouth 

 02, and greatest width 24 inches. 



Individuals reach a length of more than six feet. 



California and northward. 



RAIA INORNATA. 



Ruin binoculala Jordan & Gilbert, 1880, Proc. U. S. nat. mus., 3, p. 134. 



Raia inornate Jordan & Gilbert, 1881, Proc. U. S. nat. mus., 3, p. 457; 1881, ibid., 4, p. 74; 1882, 



Bull. 1(5, U. S. nat. mus., p. 878; Jord. & Everm., 1896, Bull. 47, U. S. nat. mus., p. 73. 

 Raia jordani Garman, 1885, Proc. U. S. nat. mus., 8, p. 43. 

 Raia inornate var. inermis Jordan & Gilbert, 1881, Proc. U. S. nat. mus., 3, p. 457; 1881, ibid., 4, 



p. 74. 

 Raia binoculala var. inermis Jordan & Gilbert, 1882, Bull. 10, TJ. S. nat. mus., p. 44. 



Disk rhomboid, anterior margins inclosed in straight lines forming an angle 

 little greater than 90°, outer angles obtuse, rounded, hinder angles and margins 

 broadly rounded. Snout produced, narrow, blunted, length nearly one third 

 of the greatest width of the disk. Mouth slightly arched, width one half or 

 less of the length of the snout. Teeth small in 38 rows. Eyes large, length 

 equal interorbital width, or less than one third of their distance from the tip of 

 the rostrum. Spiracles smaller. Forehead transversely concave. Tail nearly 

 half of the total length, slender, produced behind the second dorsal. Dorsals 

 separated by a space with spines. No small spines on the disk; a pair of hooked 

 tubercles in front of, a single tubercle at the middle, and two more behind each 

 eye, and a median series from head to dorsals, continued above the abdominal 

 region by much smaller ones. No tubercles above the shoulders. Females 

 have lateral series on the tail. 



Chocolate-brown of moderate depth, with a darker faint ring on the base 

 of each pectoral ; lower surfaces whitish, openings of pores dark. 



Total length 9|, snout to pores 4j, snout to mouth if, and greatest width 

 6 inches. Reaches a length of two feet or more. 



The specimen described is young; it does not show the dusky spots on the 

 pectorals and the ventrals, nor the spinules along the median series, on the head 

 and on the snout. 



Off coasts of southern California. 



