NO. 1213. ^1 LIST OF JAPANESE FISHES— JOJtDAX AXD SXYDER. 



841 



anterior dorsal and ventral outlines evenly curved. Interorbital space 

 Hat. Yjye very largo; lii<«li in head; a little neai'cr tip of snout than 

 edge of opercle. Snout shorter than longitudinal diameter of e3^e. 

 Mouth inferior. ol)li(iii(^: lips rather thick; maxillary freely protrac- 

 tile; extending posteiiorly not quite to a vertical from anterior edge 

 of orbit; l)iir])els, 2, on ant(M-ior edge of maxillary just al>ov«^ the distal 

 end; e((ual to maxillary in length. Gillrakers on first arch few and 

 far apart; reduced to mere elevations. Pseudobranchia' ])rcs('iit. 

 Teeth. 8,5-r),3; those of the first row slender and loosely attached; 

 those of the main row high; hooked; with a narrow grinding surface. 

 Alimentary canal short. Peritoneum with a little dusty coloring. 

 Head naked; l)ody covered with large scales. Lateral line slightly 

 decurved; extending along middle of ])ody and caudal peduncle. First 

 fully developed ray of dorsal longest; in the fold(>d tin extending a 

 little be3'ond tip of last ray; preceded by tw^o small and closely apposed 

 spine-like rays; following rays successively shorter; edge of tin con- 

 cave. Anal similar to dorsal, except that in the folded tin the lirst ray 

 does not quite reach tip of last, and the edge of tin is straight. Ven- 

 trals inserted below base of third dorsal ray; their edges rounded. 

 Pectoral pointed. Caudal deeply notched; the tips pointed. Upper 

 part of head and l)ody al)Ove lateral line finely dotted with black; the 

 dots usually grouped on edges of scales and clustered in small spots, 

 scattered here and there without any regularity; a row of dark spots 

 along the lateral line; a median dark band containing a few spots of 

 deeper color extending along the body just above the lateral line. All 

 the tins, except ventrals, with a little dark color. 



The collection contains '2 other specimens (cotypes No. 6273 L. S. 

 Jr. Univ. Mus.), which show no great variations in shape or color. 



This species is easily distinguished from G. mayedw by its nuich 

 more elongate body and darker color. 



Measurements of Gobio hiu'a\ 



LciiRth of body in millimeters 



Len.LTtli of head in body 



Depth of ))i 1(1 y " 



Distance frcmi snont to dorsal 



Distance from snout to ventrals 



Dejitli of caudal iicdiinclc 



Lengtli of caudal peduncle 



Leng-tb of snout 



Length of maxillary 



Longitiidinal diameter of eye 



Widtli of intiTorliital space! 



Depth of head at occiput 



Length of base (.if d( jrsal 



Length of longest dorsal ray 



Length of base of anal 



Length of longest anal ray 



Length of pectoral 



Length of ventrals 



Length of eaudal 



Number of dorsal rays 



Numljer of anal rays 



Number of scales in lateral line 



Number of scales between lateral line and dorsal . . 



