NO. 1235. LIST OF JAPANESE FISHES— JORDAN AND SNYDER. 741 



Family DASYATID^?^]. 



3. DASYATIS KUHLI (Miiller and Henle). 



590. Yokohama. 



Commod ill sandy ])ays tiirouo-hout iniddlo and southern Japan. 

 Known in life by its gra}- or whitisii lower side, the still more com- 

 mon I). <(h(jei being dull orange. 



Family OYPRINTD.F]. 



4. CARASSIUS AURATUS (Linnseus). 



Oide. near Sendai. in Rikuzen. 



Common in all stream.s of middle and southern Japan. 



5. LEUCISCUS HAKUENSIS (Giirxther). 



511, 513, 5in, 517, 518. Lake near Oide, near SiMidai. Japan. 



Scales 75: dorsal inserted }>ehind ventrals. Very common in all 

 streams of the northern half of the main island of Plondo, also in 

 Hokkaido. Unlike most other minnows it runs far out to sea. In two 

 specimens (513, 517) the body is uiuisually elongate, and the ventrals 

 are placed further back, almost undei- th(^ dorsal. 



6. LEUCISCUS JOUYI, Jordan and Snyder, new species. 

 (Plate XXXI.) 



No. 45,22s, U. S. N. M. Sasuna, island of Tsushima. 1S,S5, twelve 

 specimens. 



The island of Tsushima atfords a species of Leud,smii<^ heretofore 

 unknown, which is ver}' different from L. hakuev><is^ the form com- 

 mon to the greater part of Japan. It is distinguished principally by 

 its depressed head, deep caudal peduncle, and coinparativ(4y short 

 anal tin. 



We describe it as Leucisci(>i jomji from type No. 45,22S, U. S. N. M. 

 Locality, Sasuna, Tsushima. 



Head 4 in length, depth 3i, depth of caudal peduncle 61, eve 4:h in 

 head, snout 3, interorbital 2i, D. 8, A. 8, P. 16; scales in lateral line 

 i')>^^ above lateral line 18; between insertion of dorsal and occiput 41. 

 Teeth 2.5-4.2. 



Body deep and compressed, the caudal peduncle notal)ly so. Head 

 very small, pointed, depressed; the width equal to the depth. Inter- 

 orbital space wide, low, somewhat convex. 



Eye large; nearer to tip of snout than to edge of opercle, a distance 

 equal to its diami^ter. Snout sharp, the jaws equal in length. Mouth 

 small, oblicjue; lii)s thin, maxillary reaching a vertical through pos- 

 terior edge of orbit. Gill-rakers on first arch 2+t); short, pointed, 

 and far apart. Pharyngeal teeth in two rows; 5 — 2 on the left side. 



