18b5.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 43 



Length 4|. width 2, and length of pectorals IJ inches. 

 No. 20542. Japan. 



Raja senta, sp. n. 



Shape of disk resembling that of B. eglanteria. Snout extending be- 

 yond the angle formed by the anterior margins of the pectorals, acute 

 and flexible at the tip. Interorbital space concave, narrow, three and 

 two-thirds times in the distance from the eye to tlie end of the snout. 

 Month moderately wide, nearly twice in the pre-oral length, very little 

 curved forward. Eyes and spiracles small. Teeth in thirty- six to forty 

 series. Tail slender, tapering gradually, as in B. gramdata, but a little 

 more depressed than in that species; it does not extend behind the 

 tip of the dorsal. Entire upper surface covered with very small, closely 

 set, sharp spines. Each spine is slender, acute, and strongly hooked 

 backward over a broad stellate base. A series of large spines on the 

 vertebral line, interspersed with smaller ones, becoming very small on 

 the posterior half of the tail. A group of two or three large hooked 

 spines in front of each eye, a similar group above each spiracle, and 

 another on each shoulder. Tail covered with the flue scales above, be- 

 low, and on the sides. A few spines of small or moderate size on the 

 anterior portion of the rostral cartilage and across the back of the head. 

 The long, narrow dorsals are not separated by spines. 



Olivaceous, clouded with darker. A white spot on the middle of the 

 back, behind the shoulder girdle. A white band across the tail, at the 

 ends of the ventrals. 



No. 24309. Provincetown, Mass. Entire length 11.5, snout to ends 

 of pectorals 7, and tail from vent 6 inches. 



No. 21004. Le Have Bank. A deep-water species. The color of the 

 larger specimen is a rather light reddish brown, apparently uniform. 



Raja Jordan! , sp. u. 



Disk broader than long; little sharper than a right angle in front. 

 Snout pointed, rather sharp and narrowat the end. The width of the 

 disk is about one and a half times the length of the tail from the vent- 

 rals. Anterior margin of pectoral undulated, little concave. Width 

 of posterior lateral portion of pectoral— parallel with the margin — about 

 equal to distance from snout to shoulder girdle. Outer angle of pectoral 

 behind the mid-length of the disk ; posterior angle rounded. Tail niod- 

 eratelj" slender, tapering regularly to a point, depressed. Dorsals sep- 

 arated by a large spine ; posterior supplelnented by a membraneous ex- 

 pansion on the top of the extremity of the tail. Interocular space broad, 

 deeply concave, three times in the distance from the eye to the end of 

 the snout. Eye moderate, as large as the spiracle. Mouth wide, curved 

 forward, one and two-thirds times in its distance from the end of the 

 snout. Teeth sharp-j)ointed, in thirty-eight rows. On the rostral car- 

 tilage, the skull, the translucent rostral spaces, and along the anterior 

 margins of the jjectorals the skin is rough with small spines. A row 

 of larger spines along the orbital ridges and the median line of back 



