150 Mr. C. T. Keg .n on neio 



eye 4^ to 5 in the length of head, interorbital width 2| to 3. 

 Width of mouth a little more than | the width of head ; 

 sheath of lower jaw with rounded anterior edge ; folds of 

 lower lip separated anteriorly by an interspace which is about 

 ^ the width of mouth (rather more in the adult, less in the 

 young) ; 4 barbels, tlie posterior longer than the anterior 

 ones and nearly as long as the eye. Dorsal 11, with 8 

 branched rays; origin equidistant from end of snout and base 

 of caudal or nearer the former ; first branched ray the 

 longest, as long as (adult) or a little longer than (young) the 

 base of the fin. Anal 8, with 5 branched rays. Pectoral a 

 little shorter than the head, not reaching the ventrals, which 

 are inserted below the anterior part of the dorsal. 40 to 42 

 scales in a longitudinal series, 5^ or 6 in a transverse series 

 from origin of dorsal to lateral line, 3 or 4 between lateral 

 line and base of ventral. Silvery, back darker ; young with 

 6 or 7 blackish vertical bars ; membrane of dorsal fin 

 blackish ; ventrals and anal usually more or less blackish. 



Eight specimens, the largest 160 mm. in total length, 

 from Lake Candidius, Formosa, collected by Herr Sauter. 



Closely allied to the Chinese G. styani, Blgr., and O. hrey- 

 enbergiij Regan, and intermediate between them in the 

 structure of the mouth. 



IscMhavia macrolepis. 



Depth of body 3^ in the length, length of head 4. Snout 

 a little shorter than eye, the diameter of which is 3^^ to 3^ in 

 the length of head and less than the interorbital width. 

 Mouth oblique. Dorsal 10, with 7 branched rays, its origin 

 behind the ventrals and nearer to the base of caudal than to 

 the end of snout. Anal 16-17, with 13 or 14 branched rays. 

 Pectoral extending to the ventrals. 38 to 40 scales in a 

 longitudinal series, 7 or 8 in a transverse series from origin 

 of dorsal to lateral line, 3 between lateral line and base of 

 ventral. 



Three small specimens, the largest 60 mm. in total length, 

 from Kagi, Formosa, collected by Herr Sauter. 



This species is extremely similar to the Japanese /. steen- 

 aclcerij Sauvage, which has much smaller scales. 



Achilognathus smitlni. 



Depth of body 2^ in the length, length of head 4. Diame- 

 ter of eye 3 in the length of head and equal to the interorbital 

 width. No barbels. Dorsal 13, with 10 branched rays. 

 Anal 13. Pectoral extending to the ventrals. 33 scales in a 



