1901.] 



NEW FISH OF THE GENUS GOBITJS. 



153 



eye 6| times m 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 | 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 prteoperculum. Second dorsal with 11 rays, 

 Ik 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 L65 million. 



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

 down from the hills in tin; interior. 



