]901.] 



NEW FISH OF THE GENUS GOBIUS. 



153 



eye 6| times in length of head, twice in interocular width ; snout 

 slightly shorter than postocular part of head ; upper jaw extending 

 somewhat beyond the lower ; maxillary not extending to below 

 anterior border of eye. First dorsal with 6 rays, the length of 

 which is I that of head ; its base f length of head ; its distance 

 from the eye nearly equal to that between the end of the snout 

 and the border of the prseoperculum. Second dorsal with 11 rays, 

 1| as long as and slightly deeper than the first. Anal as much 



Text-fig. 9. 



Gobius percivali. 



developed as the second dorsal, with 11 rays. No silk-like 

 filaments to the pectoral. The extremity of the ventral halfway 

 between its base and the vent. Caudal rounded. Caudal peduncle 

 slightly longer than deep. 60 scales in a longitudinal series, 28 

 in a transverse series. Pale olive-brown above, white beneath ; 

 dorsal and caudal fins with numerous dark dots. 



Total length 165 millim. 



A single specimen from a Wadi (= stream) near Lahej, coming 

 down from the hills in the interior. 



