42 



D. S. JORDAN AND J. O. SNYDER. 



30. — Raja meerdevoorti (Bleeker.) 



Nagasaki ; Yokohama*. 



31. — Raja kenojei 1 (Mullet & Heule.) Kasube. 



Nagasaki ; Yokohama*. 



32. — Raja japonica Nystrom. 



Nagasaki. 



33. — Raja isotrachys Gunther. 



South Japan. 



Sub-order : MASTICUEA. 



Family XVII. — DASYATID.E. 



Genus : DASYATIS Kafinesque. 

 {Trygon Adanson. Leiobatits Bleeker.) 



34. — Dasyatis akajei (Müller & Henle.) Akaei. 



Nagasaki. 



35. — Dasyatis kuhlii (Müller & Henle.) 



Nagasaki ; Yokohama*. 



36— Dasyatis zugei (Müller & Henle.) Zugei. 



Nagasaki. 



Genus : HIMANTURA Müller & Henle. 



37. — Himantura nuda (Günther.) 



"Japan" (Bleeker.) 



38. — Himantura gerrardi (Gray.) 



" Japan." 



Genus : PTEROPLATEA Müller & Henle. 



39. — Pteroplatea japonica (Temminck & Schlegel.) ... Tsubakuroei. 



Yokohama* ; Nagasaki. 

 Genus : UROLOPHUS Müller & Henle. 



40. — Urolophus tullbergi (Nystrom ) Junorui? 



{TJrolophus cruciatus of authors, not of Lacépède.) 

 Nagasaki ; Yokohama*; Goto Islands. 



1 This species is mature at a length of less than two feet. Those rays of " taille 

 »'•norme " noted by Schlegel must belong to some other species. 



