838 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxvi. 



Scales moderate, cj'^cloid. and not imbricated; no pectoral flap; ven- 

 tral flap present. 



Orij^in of the dorsal midwa}'^ between tip of snout and base of caudal, 

 th(> aiit(>rior rays the longest, and when depressed, the tip of the fin 

 does not rciich the origin of the anal; anal inserted a little nearer base 

 of caudal than tip of pectoral, the fin short and reaching half way to 

 base of caudal; caudal I'ather deep, cmarginate; pectorals reaching 

 a])out two-thirds the distance to origin of anal; ventral inserted slightly 

 l)eforc the origin of the dorsal, or a little nearer the origin of the anal 

 than that of the pectoral, and reaching two-thirds the distance to former. 



Caudal peduncle deep and compressed, its least depth about 1| in 

 th(^ head. Lateral line straight and continuous. 



Color, in alcohol, dark brown, tinted with dull olivaceous at)()ve, 

 below pale or Avhitish; the lateral line is within a broad, deep l)r<)wn, 

 lateral band, which realh' begins on the snout, passing through the 

 eye and backwards, even upon the middle caudal rays: lips pale; some 

 of the scales on the lower portions of the sides tinted with pale brown; 

 dorsal, caudal, and pectorals grayish, the other fins pale like the belly. 



Length 4^ inches. 



We have but two examples of this species, the specimen described 

 (No. 7722 L. S. Jr. Univ.) above from Funayado, in Kiusiu, the other 

 in the U. S. National Museum, from the Kamo River, in Yamashiro, 

 from the collection of the Imperial University. Dr. Ishikawa's speci- 

 mens, the types of the species, came from the Ahasi River, in Mimisaku. 



(Named for Dr. Franz Hilgendorf.) 



11. BIWIA Jordan and Fowler. 



Biirid .JoKDAX and Fowlek, new jjenuH (zezera.) . 



Body elongate, compressed, rather thick, and somewhat ])road for- 

 ward. Head small, and below% together with the interorbital region, 

 broad and flattened; snout bluntly rounded and produced; eye rather 

 large; mouth small, inferior, the broad su])orbitals overlapping on 

 each side; no barbels; teeth, 5—5; interorlfital space more or less 

 flattened. Inside of gill-opening wdth a deep notch below. Intestine 

 short. Peritoneum silvery. Scales large, imbricated, cycloid and 

 about 38; no scales on the breast. Origin of dorsal midwaj^ between 

 tip of snout and base of last anal ray, the radii 7: anal short, the 

 radii 6, and its origin behind tip of depressed dorsal; caudal cmar- 

 ginate; ventrals inserted about opposite the middle of the base of 

 dorsal. Lateral line straight after the first 3 or 4 scales, and con- 

 tinuous. This genus is close to Pseudorashom, the latter diflering 

 principally in the deep notch inside the gill-opening below. Blwia% 

 dift'ers also in the form of the mouth, which is small, inferior, and 

 ensheathed on each side by the broad suborl)itals. 



(Named for Lake Biwa.) 



