24 DEEP SEA FISHES. 



Specimen 3357 from deeper water differs in a longer closer pile, in which 

 the longitudinal arrangement is less evident, a possible indication of specific 

 differences. 



Temperature. Bottom. 



36.4° F. Hard 



38.5° r. Green sand 



42° F. Eocky 



Raja horea nom. sp. n. 



This is the .species described and figured by Glinther in the Fishes of the 

 " Challenger " Reports, page 8, Plate IV., as Raia hi/perhorea. There are too 

 many points of difference, however, to admit of retention in that .species. 

 R. horea is somewhat closely allied to R. hadia, but is more robust, broader 

 on the forehead, less sharp in the angles of the disk, less slender in the tail, 

 and less uniform in coloration ; it has a smaller number of tubercles all told, 

 but has one directly above each orbit that is not found in the type described 

 above. It agrees with R. hadia in the group of tubercles on each shoulder, 

 but has a smaller number in the dorsal series. 



Compared with it. hyperhorea, R. borca is less angular, shorter in the snout, 

 longer in the tail, and has a large tubercle above each eye and another on 

 each shoulder between the outer pair and the vertebral series, both of 

 which tubercles are lacking on the type of R. hijjyerborea. The colons of R. 

 borea are "Grayish brown above with a trace of a darker spot on each side 

 of the body; lower parts white, with large subsymmetrical brown patches; 

 in very young specimens the lower parts are uniform white." The R. hy- 

 perhorea of Collett's figure is uniform dark grayish brown on the back, and 

 white beneath with large subsj^nmetrical markings of brown toward the 

 sides and around the edges. The lengths of the types secured by the " Chal- 

 lenger" varied from six and one hnlf to twenty-four and one half inches. 

 " Faroe Channel ; depth 400 to 608 fathoms." 



jRaja hyperhorea Collett, 1878, Forh. Vid. Selsk. Chra., No. 14, p. 7, — 

 1880, Nordhavs — Exp., p. 9, PI. I., figs. 1 and 2. The resemblance between 

 this species and R. hadia is not very close. 7?. hyperhorea is distinguished 

 by greater squareness in outlines as seen from above, including the ventrals 

 in the disk, and by a shorter tail, by lack of the inner tubercle of the 

 humeral group, by a smaller group of tubercles in the vertebral series, by 

 greater uniformity in the spines of the back, and by the color of the vcn- 



