The Fresh Water Fishes of the Island of Formosa. 293 



stripes along the sides; a deep brown spot on the lower half of the 

 base of the pectoral; spinous dorsal nearly black; soft dorsal somewhat 

 paler, with dark spots; caudal and anal fms dusk>' with darker spots; 

 pectoral tins pale gray. 



Length of body 93 mm. 



Described from a specimen from Daitotei fish-market, Taihoku. 



Habitat: Taihoku (a single specimen). 



Genus Sicyopterus Gill. 



i860. Sicyopterus Gill, Proc. Acad. Nat. Sci. Philad., p. loi. (Type Sicydium 

 slimpsoni Gill.) 



Body subcylindrical, covered with ctenoid scales of rather small 

 size; head as broad as high; mouth nearly horizontal, with the upper 

 jaw prominent; lips very thick and fleshy. The upper jaw with a 

 series of numerous small teeth, implanted in the gum and movable; 

 lower jaw with a series of conical, widely set teeth. Eyes of moderate 

 size. Two dorsal fins, the anterior with six flexible spines, of which 

 the third is filiform; caudal fin cjuite free; ventral fins united to a small 

 semicircular disc, more or less adherent to belly. Gill-openings of 

 moderate width; four branchiostegals; no air-bladder. 



Distribution: Hawaii; Japan; Philippine Islands; Formosa. 



66. Sicyopterus japonicus (Tanaka). 

 Bozuhaze (Japan); Fushunhii (Formosa). 



1909. Sicydium japonicum Tanaka, Journ. Coll. Sci., Tokyo, XX\TI, p. 22; 



Tosa, Japan. 

 1913. Sicyopterus japonicus Jordan, Sn\'der, & Tanaka, Journ. Coll. Sci., 



XXXIII, p. 431; Tosa; Kii; Kinokawa. — Tanaka, Fishes of Japan, XI, 



p. 203; Kii; Hiuga. 



Head 4.21 in length; depth 5.88; D. \T, 11 ; A. 10; P. 19; eye 6.5 in. 

 head; interorbital space 2.66; snout 2.18; depth of caudal peduncle 

 1. 71; fifty-nine scales in a lateral series; sixteen scales in a transverse 

 series. 



Body elongate, subcylindrical, slightly compressed; head rather 

 large, round, its top slightly depressed; snout broadly rounded ante- 

 riorh-; mouth horizontal, its angle reaching the vertical through an- 

 terior margin of orbit; upper jaw prominent; lips thick and fleshy, a 

 series of numerous minute teeth in upper jaw, implanted in the gum 

 and movable; lower jaw with a series of conical widely-set teeth; eyes 

 small, superior, and in the middle of the head; nostrils widely sepa- 

 rated, the anterior in a small round hole, the posterior slit-like and 



