FISHES OF THE PHILIPPINE ISLANDS AND ADJACENT SEAS 329 



form snout end, where rather narrowly separated. Ventrals close to 

 pectorals. 



China, Japan. 



PLATYRHINA SINENSIS (Schneider) 



RMna sinensis Schneidee, Syst. Ichth. Bloch, p. 352, 1801 (on La rale chinoise 

 Lac^p^de, Hist. Nat. Poiss., vol. 1, pp. 34, 157, pi. 2, fig. 1, 1798, type locality : 

 China=from Chinese drawing). 



Narcoiatus sinensis Blainville, Bull. Soc. Philomath. Paris, vol. 8, p. 121, 

 1816 (name only). 



Platyrhina sinensis MtiLLER and Henle, Syst. Beschr. Plagiostomen, p. 125, pi. 

 44, 1841 (Japan, China). — Richardson, Ichth. China, Japan, p. 186, 1846 

 (Seas of China; Canton). — Bleekeb, Verh. Batav. Genootsch. (Plagiost.), 

 vol. 24, p. 50, 1852 (reference) ; (Japan), vol. 25, p. 22, 1853 (Japan, China, 

 East Indies).— DuMERiL, Hist. Nat. Elasmobr., vol. 1, p. 576, 1865 (Tou- 

 rane, Cochin China.) — GtJNTHEK, Cat. Fishes British Mus., vol. 8, p. 171, 

 1870 (China).— Petebs, Monatsb. Akad. Wiss. Berlin, p. 926, 1880 (Ning- 

 po). — JoEDAN and Snydek, Annot. Zool. Japon., vol. 3, p. 41, 1901 (Japan). — 

 Jordan and Hubbs, Mem. Carnegie Mus., vol. 10, p. 109, 1925 (Mikawa 

 Bay and Sagami Bay). — Fowleb, Proc. Acad. Nat. Sci. Philadelphia, 1929, 

 p. 597, 19S0 (Hongkong) ; Hong Kong Nat., vol. 1, p. 134, fig. 17, 1930 

 (Japan). — Fang and Wang, Contr. Biol. Lab. Sci. Soc. China, vol. 8, p. 259, 

 fig. 20, 1932 (Tsingtau).— Wang, Contr. Biol. Lab. Sci. Soc. China, vol. 9, 

 p. 103, 1933 (Chusan).— Fowleb, List Fish. Malaya, p. 13, 138 (reference). 



Discoiatus sinensis Gaeman, Proc. U. S. Nat. Mus., vol. 3, p. 523, 1880 (China; 

 reference). — Jordan and Fovstlee, Proc. U. S. Nat. Mus., vol. 42, p. 401, 1912 

 (Wakanoura; Hiroshima). — Sntder, Proc. U. S. Nat. Mus., vol. 42, p. 401, 

 1912 (Tokyo).— Gaeman, Mem. Mus. Comp. Zool., vol. 36, p. 289, pi. 56, 

 tig. 8 (heart), pi. 66, 1913 (Japan). — Izuka and Matsuuka, Cat. Zool. Spec. 

 Tokyo Mus. Vertebrata, p. 187, 1920 (Boshiu).— Fowlee, Proc. 4th (1929) 

 Pacific Sci. Cougr., Java, p. 499, 1930 ( Japan). ^ — Lin, Sci. Rep. Nat. Tsing 

 Hua, Univ., ser. B, vol. 1, No. 5, p. 138, text-figs. 7-7a, pi. 2, fig. 4 (scales), pi. 

 5, fig. 12 (teeth), 1932 (Tsingtao).— Tanaka, Jap. Fish. Life Colours, No. 30, 

 1933. 



Discobatis sinensis Pietschmann, Sitz. Ber. Akad. Wiss. Wien, math.-nat. KL, 

 vol. 117, pt. 1, p. 647, 1908 (Japan). 



Depth 11% to 173/4 to end of tail; head 414 to 43^; disk length 

 1% to ll^ its width (width 1% in its length with age), little greater 

 than tail, with age tail subequal to slightly longer. Snout ll^ to 

 1% in head, ends in slight point formed by broadly obtuse angle ; eye 

 7 to 10, 41/^ to 61/2 in snout, 3 to 4 in interorbital ; dentary width 

 3 to 3% in head, subequal with internarial; teeth in 48 rows in jaws, 

 92 rows with age ; nostrils small ; front nasal valve with feeble outer 

 section, lobe strong, moderate inner section extended somewhat on 

 internarial; hind nasal valve with outer section large, curves around 

 outer end of nostril ; interorbital 2% to 2^^ in head, depressed con- 

 cavely. Gill openings small, equidistant, last shortest. Spiracle 

 wide, little larger than eye and close behind. 



