820 PROCEEDINGS OF THE NATIONAL MUSEUM. 



space broad, slightl}^ elevated, and flattened in the middle. Gill-open- 

 ino-s rather larg-p; gill-rakers short, Aveak and few in number; pseudo- 

 ])ranchiiv well developed. Intestine with numerous convolutions. 

 Peritoneum l)lack. 



Scales laroe, cycloid, and some narrowly imbricated on the sides; 

 no pectoral flap; vential flap small. 



Orio-in of dorsal about midway, or a trifle in advance, in the length 

 of the body, witliout caudal, the ant(?rior rays the highest, tiie ])ase of i 

 the fln 4^^ in body without caudal, the third rudimentary ray more ori 

 less stiff" and strong, and the margin of the fin nearly straight; origin 

 of anal below the posterior dorsal rays, and about midway between 

 the origin of ventrals and base of last anal ray, similar in shape to the 

 dorsal, the anterior rays the highest, the base of tin less than head' 

 without snout, the third rudimentary ray stiff, and the margin of the 

 tin nearly straight; caudal deeply emarginate, the lo})es pointed; pec- 

 torals reach a little over two-thirds the distance to origin of ventrals; 

 venti-als inserted a little before origin of dorsal and reaching to within 

 a short distance of origin of anal. Caudal peduncle rather long and 

 its least depth about 2i in head. Lateral line slightly decurxed, and 

 continu«Ml to base of caudal. 



Color in alcohol, dark ])rowu above, pale below, except the a))(h)men 

 and ventrals, which are blackish; a very pale and indistinct brown 

 spot above gill-opening, and a pale, indistinct brown or grayish sti'ipe 

 along the sides above the lateral line, and posteriorily; dorsal and 

 anal grayish, with several longitudinal dark l)ands across the former, 

 and the latter ])roadly edged Avith whitish; caudal and pectorals grayish, il 



Length, 3/'g inches. i 



Here described from an example from Tsuchiura. 



The species is very abundant in central and southern flapan. Our 

 many examples from Tsuchiura, the Chikugo River at Kurume, the ^ 

 Yodo River at Osaka, Lake Biw^a at Matsubara, Katata in Omi, Lake \ 

 Yogo in INIino, I'unayado in Kiusin, Wakanoura, in Owari near Nagoya. ij 



This species is distinguished chiefly ))v its long ])arbel and plain col-i'; 

 oration. Th(» young are marked with a more or less distinct lateral i|' 

 striY)e, l)ut ai'e without a dark spot al)ove the gill opening. 



{I(())<:<'<>lat((, hinceolate.) 



5. ACHEILOGNATHUS CYANOSTIGMA Jordan and Fowler, new species. 



'I 

 Head, 4; depth, 3^; D. IH, 8; A. HI, 8; P. 1(5; V. S; scales. 39 ■ 



in lateral line; 6 scales between origin of dorsal and lateral line, and 6 



scales between the latter and middle of belly; pharyngeal teeth .5 — 5; 



Avidth of head, 2 in its length; snout, 3| in head; eye, 4; interor})ital 



space, 2|; pectoral, li; ventral, If. 



Body moderately deep, and compressed. Head rather small, com-'. 



pressed; snout rather bluntly pointed and a trifle produced; eye small, 1 



