The Fresh Water Fishes of the Island of Formosa. 227 

 Genus Distcechodon Peters. 



1880. Dislxchodon Peters, Monatsb. Konigl. Ak. Wiss. Berlin, p. 924. (Type 

 DisUvchodon tumiroslris Peters.) 



Scales large; lateral line decurved, running along the middle of the 

 tail. Dorsal fin short, with seven branched rays and two smooth 

 spines, opposite the ventral. Anal fin of moderate length, with nine 

 branched rays, not extending forwards to below the dorsal. Abdomen 

 not carinated. Snout swollen, produced anteriorly, tip of its skin 

 overlapping the upper lip. Mouth subinferior, transverse. Upper 

 lip with a transverse inner fold; anterior border of the lower jaw rather 

 sharp. Barbels none. Gill-rakers setiform, set very closely; pharyn- 

 geal teeth 7, 3 — 3, 7, compressed, with grinding surface. 



Distribution: China; Formosa. 



31. Distcechodon tumirostris Peters. 

 Gonhii (Formosa). 

 1880. Distcechodon tumiroslris Peters, Monatsb. Konigl. Ak. Wiss. Berlin, p. 925; 

 Ningpo, China. 



Head 4.64 in length; depth 3.92; D. II, 7; h. 3, 9; P. 17; V. 9; width 

 of head 1.80 in its length; eye four in head; interorbital space 2.5; 

 snout 3; pectoral 1.28; ventral 1.5; seventy-two scales in the lateral 

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

 lateral line, ten scales between the latter and the middle of belly, six 

 scales between lateral line and the root of ventral; pharyngeal teeth 

 7, 3 — 3, 7; gill-rakers on the first arch 75. 



Body elongate, compressed, dorsal profile slightly depressed at the 

 occiput, abdomen rounded, not carinated; head rather small, triangular, 

 its top more or less convex, profile on the nape concave; interorbital 

 space broad, rather flat; snout obtusely rounded anteriorly, the tip 

 swollen, the end of its skm overlapping the upper lip; no barbel; 

 mouth subinferior, transverse; upper lip fleshy, not fringed, with a 

 thin inner fold, lower jaw nearly as long as the upper, with a sharp 

 anterior edge, lower lip not continuous; a deep oblique fissure, crossing 

 the angle of mouth and extending downwards and backwards to the 

 vertical from the nostril; eye large, anterior; nostrils close together, 

 in front of eye above; pharyngeal teeth on the outer row very strong, 

 with grinding surface and sharply gointed tip, strongly compressed 

 laterally, those on the inner row exceedingly small and slender, with 

 grinding surface; gill-rakers minute, setiform, set very closely. 



