The Fkesh Water Fishes of the Island of Formosa. 235 



tubercles, not as numerous as those in Opsariichthys, and larger in 

 proportion. The anal fin also has the developed rays elongated and 

 with adipose expansions. (Jordan & Fowler.) 

 Dislribiition: Japan; Corea; Formosa. 



Synopsis of the Formosan Species. 

 a. Scales in the lateral line 42-44; 8 scales between lateral line and the origin of 



dorsal; 2 scales between lateral line and the root of ventrals platypus. 



aa. Scales in the lateral line 49-52; 9-10 scales between lateral line and the origin 



of dorsal; 3 scales between lateral line and the root of ventrals. . . Aernmincki. 



aaa. Scales in the lateral line 53-55; 12 scales between lateral line and the origin 



of dorsal; 4 scales between lateral line and the root of ventrals . . pachyccphaliis. 



36. Zacco platypus (Temminck & Schlegel). 

 Oikawa, Haya or Ilae (Japan); Chopien or Anoye (Formosa). 



1846. Leiiciscus platypus Temminck & Schlegel, Fauna Japonica, Poiss., p. 297, 



PI. CI, Fig. i; streams near Nagasaki. 

 1863. Opsariichthys platypus Gunther, Cat. Fish., VII, p. 296; Japan & Formosa. 



— ISHIKAWA, Zool. Mag. Tokyo, 1895, P- 121; Hakone; Matsubara on Lake 



Biwa. — Prel. Cat., 1897, p. 11; Tega Lake; Tokyo; Chichibu; Lake Suwa; 



Lake Biwa; Kyoto; Tsuyama. — Boulenger, Proc. Zool. Soc. London, 1899, 



p. 961; Hainan. 

 1900. Barilius platypus Jord.\n & Snyder, Proc. U. S. Nat. Mus., XXII, p. 344; 



Lake Biwa. 

 1903. Zacco platypus Jordan & Fowler, Proc. U. S. Nat. Mus., XXVI, p. 851; 



Tsuchiura; Kinu River; Yodo River; Chikugo River; Yabe River; Tama 



River; Nagoya; Kawatana; Lake Biwa. — Smith & Cope, Proc. U. S. Nat, 



Mus., XXXI, 1908, p. 462. — Jordan & Thompson, Mem. Carneg. Mus., 



VI, no. 4, 1914, p. 232; Lake Biwa; Okayama. — Snyder, Proc. U. S. Nat. 



Museum, XLII, p. 404; Takamatsu River. — Jordan, Snyder, & Tanaka. 



Journ. Coll. Sci. Tokyo, XXXIII, 1913, p. 75; Japan. 

 1846. Leuciscus macropus Temminck & Schlegel, Fauna Japonica, Poiss., p. 209, 



PI. CI, Fig. 2; Nagasaki. 

 1846. Leuciscus minor Temminck & Schlegel, Fauna Japonica, Poiss., p. 210, 



PI. CI, Fig. 3; Nagasaki.' 

 1903. Zacco evolans Jordan & Evermann, Proc. U. S. Nat. Mus., XXV, p. 323; 



Taihoku, Formosa. 



Head 4 in length; depth 3.71 ; D. II, 7; A. 3, 9; P. 15; V. 9; width of 

 head 1.92 in its length; eye 4 in head; interorbital space 2.78; snout 3; 

 ventral 1.32; pectoral a little longer than the head; forty-three scales 

 in the lateral line, eight scales in an oblique series between origin of 

 the dorsal and lateral line, four scales between the latter and the middle 

 of belly, two scales between lateral line and the root of the \'entral; 

 pharyngeal teeth 5, 4, i — i, 4, 5; gill-rakers 2 + 8. 



