The Fresh Water Fishes of the Island of Formosa. 179 



projecting bcjoiul the U)\vcr jaw; mouth inferior, transverse, crescent- 

 shaped, with fleshy tliick lips, the upper more or less papillose; lower 

 jaw much thinner, and distinct at the angle of the mouth only; both 

 jaws with broad bands of villiform teeth; a subcrescentic narrow band 

 of villiform teeth on the palate; eight barbels, four on the snout, the 

 other four on the mentum; maxillaries long, one and one-half times in 

 the length of head, scarcely reaching the base of the pectoral, nasal 

 barbels as long as median mentals; eyes small, covered with thin skin, 

 lateral and superior; nostrils separated, the anterior in a short tube, 

 situated in a shallow groove just behind the upper lip, posterior nos- 

 trils behind the root of nasal barbels; gill-openings large, extending to 

 upper part of the base of the pectorals; gill-membranes not confluent 

 with the skin of isthmus, their posterior margins entirely free; gill- 

 rakers 3 + 8, slender. 



Origin of the dorsal above the tip of pectoral, its spine rather slender, 

 nearly two-thirds as long as the dorsal; adipose dorsal rather short, 

 above the anal, and inserted in front of anus, slightly longer than the 

 anal; pectoral with a spine, its inner edge strongly serrated; ventral 

 short, tip reaching the anus; anal fin rather short; anal papilla, not well 

 developed, very short; caudal fin emarginate, each lobe rounded at 

 the tip; caudal jieduncle elongate, slightly higher posteriorly, its 

 deepest part twice in length of head. 



Body naked, smooth; lateral line continuous, extending along the 

 middle of the sides. 



Color in formalin uniformly brownish gray, without any markings; 

 belly and throat whitish. 



Total length 130 mm. 



The present description is from a specimen from Jitsugetsutan 

 (Lake Candidius), collected by T. Aoki in August, 1916. 



Habitat: Jitsugetsutan (Lake Candidius); Dainansho, Nanto. 



Remarks: Regan's type specimen is provided with a l6-i8-rayed 

 anal fin, instead of being 15-rayed as in the present specimen. 



