128 PROCEEDINGS OF THE ACADEMY OF [April, 



slender, apical ones on the lower limb rudimentary. Dorsal fin 

 inserted midway between the tip of snout and the base of caudal, 

 osseous rays smooth, the first one minute, anterior ray the longest; 

 a recumbent spine in front of the origin of the dorsal, partially hidden 

 beneath the scales; pectoral reaching beyond two-thirds the dis- 

 tance to ventral; origin of ventral two scales behind that of the 

 dorsal; anal entirely behind the dorsal, inserted nearer to origin of 

 ventral than base of caudal, when depressed scarcely reaching the 

 root of caudal, anterior ray the longest; caudal peduncle elongate, 

 its depth 2.89 in head; caudal fin deeply forked, tip of each lobe 

 sharply pointed. Body covered with large cycloid scales; ventral 

 fin with a scaly flap; lateral line decurved, running along the middle 

 of the side, gradually entering the middle of the tail. 



Color in alcohol dark gray above; belly and lower parts of the 

 sides silvery; base of each scale dark, dorsal fin grayish, with a 

 series of black streaks; pectoral uniformly dusky; ventrals, anal, 

 and caudal fuscous, more or less reddish; top of head uniformly 

 dark. Total length 233 mm. 



Type. No. 49,949, A. N. S. P. Buraku River, Ako, collected 

 by Eiji Matsuda on February 2, 1919. 



The present species is very closely allied to Spiniharhus hoUandi. 

 It differs from the latter in having much more lower body, round 

 snout and 28-29 scales in the lateral line instead of 26-27. 



26. Gnathopogon iijimae Osliima. 

 Eight from Rihikutsu, Nanto. 



27. Pseudorasbora Parva (Schlegel). 



Lake Candidius (1); Rihikutsu, Nanto (abundant); Kirai, Ako 

 (3); Shinkaiyen, Daito (11), Shukoran River at Suibi, Kwarenko 

 (1) ; Kwaren River at Kada, Kwarenko (3), 



28. Phoxiscus kikuchii Oshima. 



Raupi, Giran (2); Karewan, Kwarenko (7); Kwarenko (20); 

 Kwaren River at Kada, Kwarenko (15); Rigyochi, Kwarenko (17);. 

 Riran, Daito (6); Shinkaiyen, Daito (abundant). 



LEUCISCULUS new genus. 



Body robust, more or less compressed posteriorly. Head rather 

 short, triangular; snout pointed. Mouth transverse, oblique; upper 

 lip entire, thin; lower lips widely separated in front, postlabial 

 folds discontinuous; anterior edge of the lower jaw naked, trench- 

 ant. Barbels none. Pharyngeal teeth in a single series, 5-4; teeth 

 molar-like, with smooth, oval grinding surface. Dorsal fin short,. 



