652 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxvi. 



light blotches on pectorals; at middle of ])ase of i)ectorals, two large, 

 round, light spots; behind these, also farther apart, two round black- 

 ish spots; edges of disk, ventrals, and tail light brown; lower surface 

 of body whitish, more or less soiled with dusky, and pores with 

 blackish dots. 



Length l-lf inches. 



Described from a young male from Nagasaki. 



A large male from K()b(> dili'ers in hav^ing the coloi's more or less 

 uniform, the spots ol)soletc. Its lower surface is greatly soiled with i 

 pale brown. 



Our adult females, all larger than any of the males, differ principally ' 

 in their greater width. They also have the eyes closer together, the 

 space l)etween alwa3^s less than their distance from the margin of the 

 disk. They are more or less uniform in color like our adult male 

 from Kobe. One from Tokyo is ver}' dark, or soiled, below. The 

 mouth is nearly straight. 



In a smaller specimen than any yet mentioned the spots and mar- 

 blings above become more distinct, especially the two large spots at the 

 })ase of the pectorals. However, there are still three rows of tubercles 

 on the upper surface of the tail. 



In our still smaller and yoimgest specimens there is great variation. 

 In most of the males the distance between e3^es is less than distance 

 from (he margin of the disk. The lower black spots on the pectoral 

 al)o\(' disappear, and the light spots at the base of the same tin vary 

 from narrow-rinuued ocelli to deep blackish blotches. The tail is 

 seldom with more than a single median row of tubercles above. 



Coasts of Japan, very abundant. Our specimens from Tokyo, 

 Nagasaki, Kobe, Wakanoura, and Hakodate. It is possil)le that more 

 than one species is included in our series. 



(Named for J. L. 0. Pompe van Meerdervoort, who collected for 

 Dr. Bleeker.) 



43. RAJA KENOJEI Miiller and Henle. 



GANGI-EI (SEA-WALL RAY); KENOEI, KASUBE, 8EBITA (FLAT-BACK); 

 IGA-EI (SPINY RAY); RENTE-EL 



Rnja kenojei Muller and Hknle, Plagiostouien, 1838, p. 149, pi. XLViii; Naga- 

 saki. — ScHLEGKi-, Fauna Japonica, 1850, p. 308; Nagasaki. — Richaroson, 

 Ichth. Cliin., 1846, p. 197; Canton. — Bleeker, Act. Soc. Sci. Ind. Neerl., 

 Ill, 1858, Japan, IV, p. 42; Japan, VI, 1859, p. 65.— Dumeril, Elasmo- 

 branches, 1870, {). 557; Nagasaki.— Gunther, Cat. Fi.*:*}!, VIII, 1870, p. 463; 

 Japan. — Nystrom, Kongl. Svensk. Vet. Ak., 1887, p. 51; Nagasaki. — Ishi- 

 KAWA, Prel. Cat., 1897, p. 60; Tokyo.— Jordan and Snyder, Proc. U. S. Nat. 

 Mus., 1900, p. 337. 



7v'aja.yV(/)omm« Nystrom, Kongl., Svensk. Vet. Ak., 1887, p. 52; Nagasaki. 



<' Baja japonica is characterized thus by Nystrom: 



"Distance from middle of forehead l)et\veen eyes to tip of snout less than half 

 breadth of head at same pcjint; distance Ijetween outer angles of nostrils somewhat 



