430 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



16, p. 409, 1858 (Japara, Java). — Gunthee, Cat. Fishes British Mus., vol. 8, 

 p. 481, 1870 (Japan, East Indies, Pinang, Madras). — Day, Fishes of India, 

 pt. 4, p. 739, pi. 190, fig. 3, 1878 (Madras). — Ogilby, Cat. Fishes Australian 

 Mus., pt. 1, p. 20, 1888 (Madras).— Day, Fauna British India, Fishes, vol. 

 1, p. 52, 1889.— Annandale, Mem. Indian Mus., vol. 2, p. 33, pi. 4, fig. 2, 

 1909 (off Burma and Orissa). — Pellegkin, Ann. Mus. Zool. Univ. Napoli, 

 new ser., vol. 3, No. 27, p. 4, 1912 (Hong Kong). — Webee, Siboga Exped., 

 Fische, vol. 57, p. 603, 1913 (Java), — Peabson, Ceylon Administr. Rep., 

 1915-18, pp. F12-F14. — Tirant, Service Oc^anogr. Peches Indo-Chine, 6* 

 note, p. 77, 1929 (Cochin China). 



Trygon (Trygon) zugei Dumeeil, Hist. Nat. Elasmobr., vol. 1, p. 606, 1865 

 (Sea of the Indies, Pondicherry, Macao). 



Dasyatia zugei Jordan and Snyder, Annot. Ziool. Japon., vol. 3, 1901, p. 42 

 (Nagasaki), — Jordan and Fowler, Proc. U. S. Nat. Mus., vol. 26, p. 660, 

 1903 (Kobe, Tokyo, Wakanoura, Onomichi, Hiroshima). — Jordan and 

 Seale, Proc. Davenport Acad. Sci., vol. 10, p. 2, 1905 (Hong Kong). — 

 EvEBMANN and Shaw, Proc. California Acad. Sci., ser. 4, vol. 16, p. 99, 

 1927 (Chef 00). —Fowler, Journ. Bombay Nat. Hist. Soc, vol. 33, p. 102, 1928 

 (Bombay) ; Proc. 4th (1929) Pacific Sci. Congr., Java, p. 505, 1930 (Japan, 

 Indian Ocean) ; Hong Kong Nat., vol. 1, p. 180, 1930 (Indian Ocean; 

 Japan).— Schmidt and Lindberg, Bull. Acad. Sci. U.S.S.R., 1930, p. 1187 

 (Tsuruga). — Fowler, List Fish. Malaya, p. 17, 1938 (reference). 



Dasyhatus zugei Gasman, Mem. Mus. Comp. Zool., vol. 36, p. 398, 1913 (Pinang, 

 China, India, Japan, East Indies). — Wu, Contr. Biol. Lab. Sci. Soc. China, 

 vol. 5, No. 4, p. 13, fig. 10, 1929 (Amoy).— Schmhw, Trans. Pacific Comm. 

 Acad. Sci. U.S.S.R., vol. 11, p. 14, 1931 (Nagasaki).— Hora and Mukerji, 

 Rec. Indian Mus., vol. 38, p. 18, 1936 (Maungmagan, Burma). 



Trygon crozieri Blyth, Journ. Asiat. Soc. Bengal, 1860, p. 45 (type locality : Lower 

 Bengal). 



Depth 23 to 25i/^ to end of tail ; head 5 to 51/3 ; disk length equals 

 its width, 1% to 1% in tail. Snout li^ to ll^ in head, extended 

 in rather narrow acute triangle ; eye 6 to 8i/^, 5% to 6 in snout, 3 in 

 interorbital ; dentary width 4i/^ in head; teeth in 24 rows in jaws, 

 cusps low or obsolete; nostrils deep, simple, internarial equals den- 

 tary width ; interorbital 2% to 3% in head, level, fontanel depression 

 little concave. Gill openings equidistant, subequal or last but little 

 shorter. Spiracle much larger than eye, broad, deep, close below 

 and along hind eye edge. 



Skin smooth. Spine greater than interspiracle width or 1% in 

 snout. 



Dorsal as median cutaneous keel behind dorsal spine on tail ; anal 

 as slightly higher and longer keel on tail below; pectorals form 

 quadrangular disk and rounded on outer angles and posteriorly; 

 ventrals triangular, pointed. 



Brown above, little paler marginally. Tail with dorsal and anal 

 cutaneous folds dusky brown. Under surface of body whitish. 



India, Burma, Malay Peninsula, Pinang, Singapore, East Indies, 

 Cochinchina, China, Japan. The figure of Miiller and Henle agrees 



