342 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxiii. 



GOBIO MAYEDiE Jordan and Snyder, new species. 

 (Plate IX, tig. 2.) 



Type specimen.— ^o. 49400, U.S.N. M. 



Locality. — Lake Biwa, Japan, near Karasaki. Collector, K. Otaki. 



Description. — Head, 3^ in length; depth, 4; depth of caudal pedun- 

 cle, 3 in head; eye, 3^; snout, 3|; interor])ital .space, 4; height of 

 dorsal, 5^ in length; anal, 7i; length of pectoral, of; ventral, Gi; 

 caudal. 4i; iuun])er of dorsal rays, 8; anal, 7; scales in lateral series, 

 37; in transverse series, counting upward and forward from origin of 

 yentral, 9; between insertion of dorsal and occiput, 14. 



Body, deep and somewhat compressed. Snout, pointed; iiiteror- 

 bital space flat. Eye, high in head; nearer snout than edge of opercle 

 a distance equal to diameter of orbit. Mouth oblique, the lips fleshy; 

 maxillary freely protractile, not quite extending to a vertical through 

 anterior edge of orbit; barbels, 2; equal in length to diameter of 

 pupil; attached to anterior edge of maxillary just above the distal end. 

 Gillrakers on flrst arch, 7; far apart and much reduced in size. 

 Pseudobranohise present. Teeth 3, 5-5, 3. Those of the inside row 

 slender, slightly hooked; those of the outside row long, hooked; the 

 grinding surface little developed. Alimentary canal short. Peri- 

 toneum silvery. Air bladder large. Head naked; body co veered 

 with large scales. Lateral line complete; decurvcd anteriorly a little 

 below median part of body; extending along middle part of caudal 

 peduncle. First fully developed ray of dorsal longest, preceded by 

 two small, closely apposed, spine-like rays; edge of fin concave; 

 when partly folded the fin is falcate. Anal rays similar in shape 

 and arrangement to those of dorsal; edge of fin straight. Caudal 

 deeph" notched, the tips pointed, Ventrals inserted below second 

 ray of dorsal, their posterior edges rounded. Pectoral pointed; 

 number of rays, 15. Snout, cheeks, and opercles silver}'; a lateral 

 band of same color, brighter and more definite in outline posteriorly, 

 extending from upper edge of gill opening to base of caudal fin; 

 along dorsal edge of band is an indistinct line of dark pigment; dor- 

 sal half of body sparsely covered with very fine dark dots which are 

 gathered in clusters forming indistinct and poorly defined spots along 

 the lateral line in the median dorsal region and on the edges of many 

 of the dorsal scales. Fins and under parts without dark color. 



This species may be distinguished from Oohio lmc>a> by its much 

 deeper and more compressed l)ody, the silvery lateral stripe, and 

 lighter color. 



Named for Kinichiro Mayeda, a student of ichthj^ology in Stanford 

 University. 



Measurements of the type and of cotypes No. 6272, Leland Stan- 

 ford Jr. University Museum, follow: 



I 



