JAPANESE CYPRINOID FISHES— JORDAN AND FOWLER. 845 



21. LEUCISCUS JAPONICUS (Sauvage). 

 Squalius japofdcm ':>Avy AGE, Bull. Soc. Philoiu., Paris., 1883, p. 4; Lake Hiwa. 



Head 4f in total; depth 5i in total, D. 9; A. 8; V. 8; scales 38 in 

 the lateral line; pharyngeal teeth 5 — 3. Snout slightly more than eye, 

 which is 3i in head; no pores on snout; subor])itals narrow; interor- 

 bital space flat, more than eye. Dorsal inserted nearer tip of snout 

 than caudal peduncle, and somewhat behind ventrals; caudal emargin- 

 ate. Lateral line straight. Color silvery; black points upon back 

 and upon each scale of lateral line. Length 85 mm. (about 33Vin<'hes). 

 Lake Biwa. (Sauvage.) 



This species has been observed only in the collection sent from Lake 

 Biwa to Dr. Sauvage by Dr. Steeuacker. It was not seen by Jordan 

 and Snyder. 



22. LEUCISCUS C^RULESCENS (Sauvage). 

 Scfialius acruk'iicens Sauvage, Bull. Soo. Philom., Paris, 1888, p. 8; Lake Biwa. 



Head 5i in total; depth 5i in total; D. 9; A. 8; scales 4.5 in the lateral 

 line; pharyngeal teeth 5—2. Snout somewhat shorter than the eye, 

 which is 4 in head; a few pores upon the snout; suborbitals narrow; 

 interorbital space convex, and somewhat more than the diameter of the 

 eye. Dorsal inserted somewhat nearer the extremity of snout tliuii 

 base of caudal, and somewhat behind the ventrals; caudal emarginato. 

 Lateral line straight. Color silvery, clouded upon the back, and upoi 

 the top of the head; a bluish band along the lateral line. Length 1l>o 

 mm. (about 4 ij inches). Lake Biwa. (Sauvage.) 



This species is known only from the description of Dr. Sauvage. 



{c:rrii](scr)is. Iduish). 



23. LEUCISCUS PHALACROCORAX Jordan and Fowler, new species. 



Head 3f ; depth 4f ; D. HI, 7; A. HI, 8; P. 17; V. 9; scales about 

 62 in the lateral line; 12 scales between origin of dorsal and lateral 

 line, and 12 between latter and middle of belly; pharyngeal teeth 2, 

 5—4, 3; width of head 2 in its length; snout 3i in head; eye 4i; mter- 

 orbital space 3; pectoral about lj^\ ventral If. 



Body elongate and compressed. Head elongate, pointed, com- 

 pressed, the sides somewhat flattened, and the upper profile slightly 

 convex; snout rather long; pointed and slightly convex and produced; 

 eye small, anterior, and li in snout; mouth nearly horizontal, on y 

 slightly inclined, the maxillary protractile, and reaching posteriorly 

 to the anterior margin of the eye; lips fleshy, not dilated; pharyngeal 

 teeth with narrow grinding surface, scarcely hooked; nostrils close 

 too-ether on the snout above and nearer the eye than tip ot snout; 

 interorbital space and top of head convex. Gill-opemngs large; giii- 

 rakers short, and firm; pseudobranchia^ present. Intestine short. 

 Peritoneum black. 



