The Fresh Water Fishes of the Island of P'ormosa. 2.31 



food-fishes among the Chinese people, though it is not a native of the 

 Island. Every year larv;c of this fish are imported from Southern 

 China and are bred artificialh' by Chinese farmers. 



Genus Acheiloc.nathus Bleeker. 

 i860. Acheilogtialhus Bleeker, Ichth. Archipel. Indie. Prodr., II, p. 228. (Type 

 AcheilognalltHs melanogasler Bleeker.) 



Body more or less deep and compressed; head short; eye more or 

 less large; snout rather short and blunt; mouth small, the maxillary 

 not reaching the eye; maxillaries each with a barbel; teeth 5-5, 

 smooth, with a narrow grinding surface; interorbital space rather 

 broad. Intestine long. Peritoneum black. Scales large, some of 

 those on the sides imbricated, 36-39. Origin of the dorsal about 

 midway in the length of the body without caudal, base of fin moder- 

 ate, with eight to ten developed rays; caudal deeply emarginate; 

 ventrals generally inserted a little before origin of dorsal. Lateral 

 line slightly decurved, and continuous. (Jordan and Fowler.) 



Distribution: Formosa; China; Corea; Amur Province; Japan. 



34. Acheilognathus himantegus Giinther. 



1868. Acheilognathus himantegus Gunther, Cat. Fish., VII, p. 277; Formosa. 



Head 4.58 in length; depth 2.89; D. 2, 8; A. 2, 11 ; P. 12; V. 7; width 

 of head 1.66 in its length; eye 2.66 in head; interorbital space 2; snout 

 3; pectoral 1.2; ventral 1.33; thirty-four scales in the lateral line, six 

 scales in an oblique series between origin of dorsal and lateral line, 

 four scales between the latter and the middle of belly, three scales 

 between lateral line and the root of the ventral; pharyngeal teeth 5-5; 

 gill-rakers 3 + 9. 



Body compressed, rather deep; head small, its top convex, with a 

 median horny ridge; snout short, obtusely rounded anteriorly, its 

 tip with a bony prominence, tip of its skin overlapping the upper lip; 

 interorbital space broad, interspace between nostrils swollen; mouth 

 subinferior and oblique, its angle reaching the nostrils below; lips thin; 

 lower jaw slightly shorter than the upper; two maxillary barbels; eyes 

 moderate, slightly anterior and superior; nostrils close together, in 

 front of eye above. 



Origin of dorsal midway between tip of snout and base of caudal, 

 much behind that of the ventral, anterior rays longer; pectoral fin not 

 reaching the ventral; ventral slender, scarcely reaching the root of 

 anal; anal fin inserted below thje middle of dorsal, elongate, its origin 



