JOED AN AND THOMPSON: FISHES OBTAINED IN JAPAN IN 1911. 225 



dorsal surface of head and line of back dark; belly in males coarsely pigmented, 

 with colored area sharply limited above, extending over ventral surface of head and 

 along base of anal; dorsal with black along middle of membrane, but with the rays 

 uncolored, and pattern frequently obscured by a general heavy pigmentation; anal 

 narrowly margined with black, otherwise as dorsal; ventrals black, pectorals and 

 caudal dusky; in many cases fins entirely colorless; peritoneum silvery with black 

 reticulations. 



This species may be distinguished from others by the absence of strongly 

 marked lateral bands, the long barbels, the number of fin-rays, smooth pharyngeal 

 teeth, proportions of the fin-bases and the measurements of the caudal peduncle. 

 The specimens described were recorded as Acheilognathus lanceolata by Jordan and 

 Fowler. From this species it is differentiated by the possession of one less divided 

 ray in both the dorsal and anal fins, by the longer barbel, and by the greater average 

 depth of the caudal peduncle. 

 55. Acheilognathus moriokae sp. nov. (Plate XXV, fig. 2). 



Acheilognathus limbaln Jordan & Fowler, Proc. U. S. N. Mus., XXVI, 1903, p. 818, in part. Specimens 

 from Morioka, on the Kitakama River, and some specimens from Lake Biwa, at Matsubara. 



Among the specimens recorded from Morioka by Jordan and .Fowler as 

 Acheilognathus limbata is a species which appears to be new. The type is in the 

 collection of Stanford University. Cotypes are in the Carnegie Museum. 



Description of the type, 95 mm. in total length and 75 mm. in length to base 

 of the caudal. 



Head 4 in body-length; depth of body 2.86; D. Ill, 9; A. II, 8; thirty-seven 

 scales in lateral line, in transverse series between vertical fins 6/5; pharyngeal 

 teeth 5-5. 



Tip of premaxillaries at level of, or slightly below, lower edge of pupil; snout 

 slightly overhanging premaxillaries; mouth not very oblique; gill-rakers 2 + 12, of 

 equal length throughout; pharj^ngeal teeth smooth, with a narrow grinding surface 

 and hooked tip; lateral line complete; barbel a quarter of diameter of eye in length, 

 or less, somewhat coarse in texture; depth of caudal peduncle 2 in length of head, 

 its length 1.14 in same, or 4.5 in body-length. 



Dorsal inserted midway between tip of snout and base of caudal; its base 1.25 

 in head; its length 1.5; anal inserted under last dorsal ray, its base 1.7 in head, its 

 height the same, first branched ray extending beyond base of last ; margin of fin some- 

 what falcate; ventrals under dorsal insertion, their length equal to anal height; that 

 of pectorals slightly greater. 



A blue-black lateral stripe along sides of caudal, its width over half as wide as 



