168 Annals of the Carnegie Museum. 



Specimens just hatched and up to ten inches in length always have 

 only two spines in front of the eye and one behind, a median spine 

 on the back, and a row of spines on the back of the tail. The inter- 

 orbital space is 2.5 in the snout, and the median portion of the anterior 

 edge of the pectoral touches a straight line from the tip of the snout 

 to the outer edge of the pectoral. The young in these respects does 

 not differ drom the adult of Raja inornala. (The young specimens are 

 from Puget Sound where Raja inonmta has never been taken.) 



3. Raja binoculata Girard. 



Numerous specimens were taken on set-lines varying in length up 

 to six and one-half feet, and small ones newly hatched and still in the 

 egg-capsule were taken with the dredge. This species reaches a weight 

 of considerably over a hundred pounds. 



The snout grows longer with age; the large hooked spines do not 

 grow in proportion with the growth of the body, being smaller in 

 larger individuals, or altogether disappearing; and the body with age 

 grows rougher with spinules. 



In the following description the numbers in parenthesis refer to 

 the specimens here listed arranged in reference to size. 

 Specimen (i) female 77 inches in length, 55.5 inches in w'idth. 

 Specimen (2) male 60 inches in length, 44 inches in width. 

 Specimen (3) male 52 inches in length, 38 inches in width. 

 Specimen (4) female 23 inches in length, 17 inches in width. 

 Specimen (5) male 16 inches in length, 12 inches in width. 



Length of snout from between front of eyes (i) 3.8, (2) 4.33, (3) 4.2, 

 (4) 4.4, (5) 4.6 in width of disk; (i) 2.83, (2 and 3) 3, (4) 3.16, (5) 3.25 

 in length to inner angle (union with body) of pectoral. Interspiracle 

 width (i, 2, and 4) 1.9, (3 and 5) 1.85 in length of snout. Interorbital 

 width (i) 2.1, (2) 2.5, (3) 2.6, (4 and 5) 3 in length of snout. Length 

 of snout from edge of upper lip (in all) 1.125 in snout from eye. The 

 eye was not measured in (i and 2). The length of iris is contained 

 (3) 2, (4) 1.3, (5) 1.25 times in distance from its posterior edge to 

 posterior edge of spiracle, or (3) 12, (4) 10, (5) 8.5 times in snout. 

 The length of spiracle (3) i, (4) 1.33, (5) 1.5 in the length of ball of eye. 

 Transverse width of upper tooth patch (i) 1.9, (2) 1.6, (3) 1.75, 

 (4 and 5) 1.9 in length of snout from upper lip. A line drawn between 

 the outer angles of the pectorals crosses the median line a distance be- 

 hind the tip of the snout (i, 2, and 4) twice the distance from the tip 



