1920.] NATURAL SCIENCES OF PHILADELPHIA. 12,S 



jaw, postlabial groove interrupted; tip of the lower jaw entirely 

 naked, edge rounded, fleshy, with no horny substance; barbels 

 four, the rostral nearly as long as the eye, the maxillary longer, 

 reaching beyond the posterior border of orbit; eye slightly superior 

 and anterior; nostrils close together, in front of the eye above, 

 anterior nostril in a short tube; pharyngeal teeth slender, hooked; 

 gill-rakers short. Origin of the dorsal midway between the tip of 

 snout and base of caudal, opposite to ventrals, armed with three 

 undivided rays, the last one the longest; pectoral as long as the ven- 

 tral, reaching two-thirds the distance to the latter; ventral inserted 

 below first branched ray of the dorsal, scarcely reaching the vent; 

 anal nearer to origin of ventral than the root of caudal, anterior 

 ray the longest, when depressed not reaching the caudal; caudal 

 peduncle compressed, its depth 2 in head; caudal fin deeply forked, 

 tip of the lobes sharply pointed. Body covered with uniform cyc- 

 loid scales, ventral with a scaly flap; lateral line nearly straight, 

 running along the middle of the tail, slightly decurved anteriorly. 

 Color in alcohol yellowish gray above, paler below; top of ' head 

 dark; sides with seven dark vertical stripes, one of which at the 

 base of caudal; back with a series of irregular, dark spots; mem- 

 brane of the dorsal fin with a series of dark stripes; pectoral and 

 anal grayish; ventrals white; caudal uniformly dark. Total length 

 72 mm. 



Type, No. 49,947, A. N. S. P. Kunanau River, Ako, collected by 

 Eiji Matsuda on January 2, 1919. 



Kuanau River, Ako; Tamusui River at Shinten; Shishito, Nanto; 

 Dakusui River at Musha; Suisha River at Fumpo. 



Besides the type, 9 paratypes, 2 of which from the Kimanian 

 River, show the following: Head 3.52 to 4.40; depth 3.83 to 4.13; 

 D. Ill, 8; A. Ill, 5; P. 14, few 15 or 16; V. 8, few 9; head width 

 1.66 to 2; interorbital space 2.71 to 3; eye 3.40 to 4; snout 2.62 to 

 3; scales 6 — 41 or 42 — 5; length 77 to 116 mm. 



19. Scaphesthes tamusiensis Osliima. 



Koshiryo, Giran (2); Taiko, Giran (6); Inzampo, Giran (1), 

 Takkiri River, Kwarenko (16); Mokkui River at Domon, Kwarenko 

 (3); Nankan River at Hokuzanko, Nanto (3); Dakusui River at 

 Musha, Nanto (11); Shishito, Nanto (2); Kunanau River at Kapi- 

 yan, Ako (10). 



SCAPHIODONTELLA Oshima, new genus. 



Body elongate, deep, compressed. Snout short, pointed anter- 

 iorly, tip of the skin extends downwards, overlapping the upper hp. 



