The Fresh Water Fishes of the Island of Formosa. 187 



instead of being villiform, as in small specimens. Thus the size of the 

 vomerine teeth is an individual difference, not specific. Therefore 

 it is unreasonable to separate C. saiiteri from C. fiiscus. 



Family COBITID.^. 



Artificial Key to the Formosan Genera. 



a. No erectile spines below the eye; ten or twelve barbels; four about the 



mandible; lateral line medium Misgurnus. 



ua. An erectile spine below the eye; six barbels, only on the upper jaw; lateral line 

 incomplete Cobitis. 



Genus Misgurnus Lacepede. 

 1803. Misgurnus Lacepede, Hist. Nat. Poiss., p. 16. (Type Cobitis fossilis 

 Linnaeus.) 



Body elongate, compressed. Head triangular, elongate, compressed; 

 snout projecting; mouth inferior, with fleshy lips; barbels ten or twelve, 

 of which four are mandibular; eye small. Gill-openings lateral; 

 lateral line complete. No spine below the eye. Body with small 

 scales, except on the head, which is naked. Origin of the dorsal about 

 in the middle of the length of the fish, over the ventrals; anal entirely 

 behind dorsal; pectorals more or less equal to the head; caudal nearly 

 equal to head, and rounded. Air-bladder in a bony capsule (Jordan & 

 Fowler). 



Distribution: Europe; Bengal; India; Siam; Indo-China; China; 

 Formosa; Amur Province; Japan. 



Synopsis of the Formosan Species. 

 a. Scales relatively small, 140-150 in lateral series; body slender, the depth 7-8 in 

 length; barbels short, the longest, about 2.5 in head; color dark gray, above 

 spotted and marbled with dark, base of the caudal above with a black spot. 



anguillicaudalus. 



aa. Scales relatively large, 1 06-11 5 in lateral series; body plump, the depth 5.86- 



6.50 in length; barbels long, the longest about 1.8 in head; color relatively 



plain, obtusely speckled with minute dark spots, not marbled, base of the 



caudal above with no black spot decemcirrosus. 



II. Misgurnus anguillicaudatus (Cantor). 

 Dojo (Japan); Horyu (Formosa). 



1842. Cobitis anguillicaudatus Cantor, Ann. Mag. Nat. Hist. IX, p. 485. — - 

 Richardson, Voy. Sulph., Fish., 1846, p. 143, PI. 55, Figs. 9 and 10; China. 



1868. Misgurnus anguillicaudalus Gltnther, Cat. Fish. VH, p. 345; China; 

 Japan; Formosa. — Ann. Mag. Nat. Hist., Sept., 1873, p. 250; Shanghai. — 



