The Fresh Water Fishes of the Island of Formosa. 207 



fi\e between the latter and middle of belly, three and one-half scales 

 between lateral line and origin of ventral; pharyngeal teeth 5, 3, 2-2, 

 3, 5; gill-rakers 5 + 9. 



Body elongate, depth equal to the length of head, dorsal profile 

 more convex than the ventral; head smooth, with man}- mucous cav- 

 ities around the eye; snout not projecting beyond the upper lip, with 

 strongly curved profile; sides of snout pitted, in the centre of each pit 

 a small round tubercle; upper jaw projecting beyond the lower; 

 mouth inferior, transverse, its angle not reaching the anterior border 

 of orbit; upper lip fleshy, rather thin; lower lip thick, divided into two 

 lobes by a median longitudinal notch, anterior border naked, with a 

 sharp inner transverse horny edge; four barbels, the rostral two-thirds 

 as long as the maxillary barbels, the latter reaching the posterior border 

 of orbit; eye superior and slightly anterior; nostrils close together, 

 in front of eye, anterior nostril in a short tube. 



Origin of dorsal slightly in advance of a point midway between tip 

 of snout and base of caudal, opposite the ventral; pectoral fin not 

 reaching the ventral; ventral inserted one scale behind the origin 

 of dorsal; anal entirely behind the dorsal, its rays rather long, when 

 depressed, tip of the anterior ray extending beyond the others; caudal 

 fin strongly forked, tip of each lobe sharply pointed. 



Body covered with uniform scales; lateral line continuous, nearly 

 straight, extending along the middle of the tail. 



Color in formalin olive-brown above the lateral line, yellowish 

 gray beneath; sides with seven black vertical bars; lower parts of body 

 pale reddish yellow; membrane of the dorsal with black streaks; 

 caudal and pectoral fins gray; other fins dusky white. 



Total length 115 mm. 



The present description is from a specimen from Shinchiku, col- 

 lected by T. Aoki in December, 191 6. 



Habitat: Tamusui River at Shinten and Heirinbi; Shinchiku; Tozen 

 River; Horisha; Jitsugetsutan (Lake Candidius). 



Remarks: The type of the genus Gymnostomiis Heckel is Cyprinus 

 ariza Buchanan-Hamilton. Although it is provided with moderately 

 large scales (thirty-seven in the lateral line), it differs distinctly from 

 the species which belong to Acrossocheiliis in having two small barbels 

 instead of four. 



In February, 1908, Mr. C. Tate Regan described the present species 

 naming it Gymnostomiis formosaniis (from Lake Candidius). But as 



