FISHES OF THE PHILIPPINE ISLANDS AND ADJACENT SEAS 379 

 KAJA ISOTRACHYS Gtinther 



Raja isotrachys Gunther, Ann. Mag. Nat. Hist., London, ser. 4, vol. 20, p. 434, 

 1877 (type locality: Coast of southern Japan, in 365 fathoms) ; Rep. Voy. 

 Challenger, vol. 22, p. 7, pi. 3, 1887 (lat. 34° 7' N., long. 138°, E., in 3oo 

 fathoms). — Jordan and Snydbib, Annot. Zool. Japon., vol. 3, p. 42, 1901 (ref- 

 erence).— Jordan and FowLEi:, Proc. U. S. Nat. Mus., vol. 26, p. 649, 1903 

 (compiled). — Tanaka, Fishes of Japan, vol. 85, p. 670, pi. 155, figs. 430-432, 

 1927 (Mororan to Hokkaido, Kesen). — Fowlek, Proc. 4th (1929) Pacific 

 Sci. Congr., Java. p. 501, 1930 (reference). 



Rata isotrachys Gakmax, Mem. Mus. Comp. Zool., vol. 36, p. 354, 1913 (com- 

 piled). 



Head to spiracle 5% in total; disk length I14 its width, slightly 

 greater than tail. Snout IYq in head to spiracle, not produced, would 

 form slightly obtuse angle, slight notch either side near tip ; eye 41/2 

 in head to spiracle ; 4% in snout, 2% in interorbital ; mouth slightly 

 waved, width 21/5 in preoral length from mouth corner; teeth sub- 

 equal, bluntly pointed, upper about 35 rows; oronasal groove, inter- 

 narial 2l^ in space to snout tip and little greater than mouth width, 

 hind valve large, with rather weakly developed fringes posteriorly; 

 interorbital 2 in head to spiracle. Spiracles directly beliind eye, 

 oblique, little greater than eye. 



Body and tail entirely covered above with small asperities, each 

 with stellate base and spine at center ; no spine on superciliary edge ; 

 on back near front end of vertebral column pair of larger spines, 

 interspace equals interorbital; asperities about middle of interspace 

 between spmes larger than others; about 20 median spines in row 

 on tail end at first dorsal ; under surface smooth. 



Dorsals subequal, about 3 in snout, interspace about % base of first ; 

 caudal rudimentary, 3^^ in snout; pectorals form rhomboid disk, 

 front edges slightly undulate, broad angle blunt and convex, hind 

 edge broadly convex, likewise hind angle; ventrals deeply notched. 



Above uniform purplish brown, narrowly edged much darker on 

 posterior edge of disk. Hind ventral edges darker narrowly. Be- 

 low whitish, edged with dark color on hind edge of disk and ventrals, 

 corresponding with upper surface. Length 600 mm. (Tanaka.) 



Japan. 



RAJA TOBAE Tanaka 



Raja tobae Tanaka, Dobuts. Zasshi, Tokyo, vol. 28, p. 313, 1916 (type locality: 

 Miyazu). — Jordan and Hxjbbs, Mem. Carnegie Mus., vol. 10, p. 113, 1925 

 (Miyazu; Tokyo market; Toba market; Kagoshima Bay; Mikawa Bay). — 

 Tanaka, Fishes of Japan, vol. 35, June 20, p. 673, 1927 (Kesen in Riku- 

 zen) ; vol. 36, pi. 156, figs. 434-436, 1927.— Fowleb, Proc. 4th (1929) Pacific 

 Sci. Congr., Java, p. 501, 1930 (reference). — Fang and Wang, Contr. Biol. 

 Lab. Sci. Soc. China, vol. 8, p. 264, fig. 22, 1932 (Chef 00). —Wang, op. cit., 

 vol. 9, No. 3, p. 104, 1933 (Chusan). 



