GENUS AND TEN NEW SrECIEÖ OF JAPANESE FISHES. 11 



Body oblong, compressed ; caudal peduncle also compressed ; 

 nape slightly elevated. Head small, deep ; eye lateral, high ; in- 

 terorbital broad, flat, slightly wider than diameter of eye ; snout 

 short, pointed in profile, rounded when seen from above. Mouth 

 slightly oblique, upper jaw rather included. Maxillary extend- 

 ing to anterior margin of orbit ; its barbel short, in length 

 equal to one half eye's diameter. Dorsal inserted midway between 

 tip of snout and root of middle caudal rays ; highest ray of the 

 fin equal to length of head without snout. Anal below seventh 

 ray of dorsal, its highest ray shorter than length of postorbital 

 part of head by half diameter of eye. Eays of both dorsal and 

 anal far from base of caudal. Pectoral inserted low, scarcely ex- 

 tending to base of ventral. Ventrals close together, scarcely ex- 

 tending to base of anal. Caudal deeply forked. 



Scales large, cycloid ; nape scaled ; head entirely naked. 

 Lateral line incomplete, decurved, ceasing at l'2th scale on one 

 side and at 25th scale on the other side of the type (in another 

 specimen at 12th scale on one side and at about 9th scale on the 

 other). 



Colour in spirit reddish yellow, paler beneath ; opercles and 

 cheeks silvery and irridesceut. No markings. All the fins pale ; 

 anal narrowly edged with blackish brown. 



The species resembles Rhodeus oryzœ Jordan & Seale origi- 

 nally described from seven specimens from Kawatana (near Naga- 

 saki), but differs from it in having lower body, rather less num- 

 ber of anal rays, and in the position of dorsal fin. 



Two specimens of the new species were taken in a pond in 

 the Botanical Garden of the Imperial University, Tokyo, of 

 which the type is registered under No. 1710 in the University 

 collection. The species seems to be rather rare, occurring together 



