NO. 1334. JAPANESE CYPRINOID FISHES— JORDAN AND FO WLER. 849 



26. LEUCISCUS JOUYI Jordan and Snyder. 



Leudscusjouyi Job.t>a:s and Snyder, Proc. U. S. Nat. Muh., 1901; Sasniia island 

 of Tsushima, Straits of Korea. 



Head, 4; depth, 3f; D. Ill, 7; A. Ill, T; P., I(>; V., 9; scales, (iS 

 in the lateral line; about IS scales between ori«-in of dorsal and lateral 

 line, and about 16 between the latter and middle of belly; phai'vnfeal 

 teeth, 2, 5- -l, 2; width of head, about li in its length; snout, ^ri in 

 head; eye, a little over -1; interorbital space, 2i; pectoral, nearly 1^; 

 ventral, If. 



Body elong-ate, rather deep, and compressed. Head small, pointed, 

 depressed, and its width equal to its depth; snout pointed, rounded 

 and slightly produced; eye moderate, anterior, about 1^ in snout; 

 mouth slightly oblique, the maxillar}- protractile, and reaching poste- 

 riorly to anterior edge of eye; lips somewhat fleshy, not dilated; 

 several pharyngeal teeth of the outer row with narrow grinding sur- 

 face, and others slightly curved; nostrils close together on sides of 

 snout, nearer front of eye than tip of snout; interorbital space and top 

 of head broad and slightly convex. Gill-openings large; gill-rakers 

 short and pointed, 2+6; pseudobranchife pre.sent. Intestine short. 

 Peritoneum silvery. 



Scales large, cycloid, and of rather even size; no pectoral or ventral 

 Hap. 



Origin of dorsal much nearer the base of the caudal than tip of 

 snout, and when depressed it reaches within a short distance of the 

 base of the last anal ray; origin of anal about midway between tip of 

 pectoral and base of caudal; caudal broad and deep, emarginate and 

 the lobes roiuided; pectoral about three-tifths to A^entval; ventral 

 inserted well before the dorsal, and nnich nearer the tip of pectoral 

 than origin of anal. Caudal peduncle ver}" deep and compressed, 

 the least depth about equal to the depth of the head. Lateral line 

 slightl}^ decurved and continuous. 



Color in alcohol brown, a little darker above and somewhat i)aler 

 beneath, the sides mottled with scales darker than the others. 



Length, 6jV inches. 



This description from one of the cotypes. No. 6376, Ichth3^ological 

 Collections Leland Stanford Junior Univ^ersity Museum. Locality, 

 Sasuna, island of Tsushima. 



Of this species we have a number of specimens from Sasuna, island 

 of Tsushima (cotypes), and we refer to it others from Kaminutani Kiver 

 near Lake Biwa, province of Omi. 



Most of our examples have a dark median band running along the 

 back from the occiput to dorsal and then continued behind the tin to 

 caudal. Some are also more or less tinely mottled with brown and 

 have pores about the head. 



(Named for its discoverer, Pierre Louis Jouy.) 



