426 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



Sci. Philadelphia, vol. 87, p. nO, 1935 (Bangkok).— Roxas and Mabtin, Dept. 



Agr. Comm. Manila, Tech. Bull. 6, p. 16, 1937 (reference). — Fowleb, List 



Fish. Malaya, p. 16, 1938 (reference). 

 Dasyatis knhli Jordan and Seale, Bull. Bur. Fisher., vol. 26, 1906 p. 4, 1907 



(Philippines). — Seale and Bean, Proc. U. S. Nat. Mus., vol. 33, p. 239, 



1907 (Zamboanga). — Seaj.e, Philippine Jouru. Sci., vol. 5, p. 264, 1910 



(Philippines). 

 Trygon glauconotus (Kuhl and Van Hasselt) Bleekee, Verb. Batav. Genootseh. 



(Plagiost), vol. 24, p. 74, 1852 (type locality: Java). (Name in 



synonymy.) 

 Raya trigonoides Castelnatj, Proc. Zool. Acclimat. Soc. Victoria, vol. 2, p. 121, 



1873 (type locality: New Caledonia). 

 Dasybatus varidens Garman, Proc. U. S. Nat. Mus., vol. 8, p. 40, 1885 (type 



locality: Hongkong). 

 Dasyatis varidens Fowler, Hong Kong Nat., vol. 1, p. 181, 1930 (compiled). 



Depth 1378 to 141/5 to end of tail; head 6y2 to 8; disk length II/5 

 to 1^4 its width, lYs to li/^ in tail. Snout 1% to I14 in head, meets 

 at very blunt angle in front ; eye 4% to 5 in head, 3 to 3% in snout, 

 3 to 3% in interorbital ; dentary width 3i/4 to 414 in head; teeth in 

 25 to 30 rows in jaws, rhombic, cusps as slight keel; nostrils deep, 

 simple, internarial equals dentary width; interorbital 1% to 1% in 

 head, nearly level. Gill openings small, equidistant, last smallest. 

 Spiracle greatly larger than eye, deep, edges entire. 



Skin smooth. Caudal spine extracted. 



Dorsal as short, low, median, cutaneous fold behind spine; anal 

 as long and much deeper one below, deep as tail depth; pectoral 

 with outer posterior edges almost straight, angles blunt; ventrals 

 triangular, front edge straight and hind edge little convex. 



Brown above, with darker mottling or specks about eyes and 

 interorbital. Variable gray spots, not larger than eye and often 

 with slightly darker marginal rings, scattered about disk, though 

 largest ones posterior at each side of disk. Tail like back, though 

 with 3 distinct buff rings terminally, but crossing dark cutaneous 

 anal. Under surface of disk whitish. 



Zanzibar, India, Ceylon, Singapore, East Indies, Philippines, 

 Cochinchina, China, Japan, West Australia, Queensland, New South 

 Wales, Melanesia, Micronesia, Polynesia. Kecorded by Kner from 

 Auckland, New Zealand, locality doubtless erroneous. Miiller and 

 Henle show a figure with 2 caudal spines, also a very few small 

 rounded blue spots on each pectoral medianly, besides an imperfect 

 row of vertebral spines on back. Garman says: "Skin smooth on 

 the young, later a vertebral series of depressed tubercles appears 

 from the shoulder girdle forward, to be still later continued back- 

 ward to the caudal spine." 



9327. Cebu market. August 17, 1909. Length, 393 mm. 



9328. Cebu market. August 17, 1909. Length, 585 mm. 

 6283. Manila. June 11, 1908. Length, 325 mm. 



