BY J. DOUGLAS OGILBY. 21 



GOBIID.E. 

 Valenciennea aruensis sp. nov. 



D. vi, i 12 ; A. i 12 ; P. 19 : Sc. 92-42. Depth of body 

 5-1, of caudal peduncle 9-1, length of head 3-5, of soft 

 dorsal, 3-35, of caudal fin 3-5 in length of body. Length 

 of snout 2-7, diameter of eye 5-1, width of interorbit 5-5, 

 length of maxillary 2-6, longest dorsal spine 1-25, last 

 dorsal lay 1-55 {$) 1-9 ( $ ), length of pectoral 1-25, of 

 ventral 1-8 in length of head. 



Depth of head 1-65, width of head 1-4 in its length. 

 Snout evenly rounded above, nearly twice as long as the 

 diameter of the eye ; interorbital region flat ; maxillary 

 extending to below the anterior border of the eye. 



Spinous dorsal originating above the base of the pec- 

 toral, the 3rd spine produced ; last dorsal ray longest, 

 extending well on the rudimentary caudal rays, 1-2 {$) 

 1-6 (9) in the 3rd spine. Anal fin originating midway be- 

 tween the root of the caudal and the vertical limb of the 

 preopercle and below the 2nd ray of the soft dorsal, with 

 which it is conterminous, the last ray much shorter than 

 ( (J ) or as long as ( 9 ) that of the dorsal. Caudal fincuneate : 

 caudal peduncle short and stout, as deep as long. Pectoral 

 reaching to below the origin of the soft dorsal. Ventral 

 extending more than half way to the vent, the 3rd or 4th 

 ray longe&t. 



Width of gill- opening twice the diameter of the eye ; 

 7 gill-rakers on the lower branch of the anterior arch, the 

 longest 2-5 in the eye. 



Pale olive-green, the back with ten broad darker 

 cross- bands, of which two are on the nape, two below the 

 spinous dorsal, four below the soft dorsal, and two on the 

 peduncle ; these bands are much darker, sometimes almost 

 black, marginally than mesially, the middle portion being 

 but little darker than the ground color ; sides of head and 

 body with two chestnut stripes, the upper from the tip of 

 the snout to the below middle of the soft dorsal, the lower 

 from behind the eye to the upper third of the caudal, the 

 former bisecting, the latter forming the lower border of the 

 cross-bands ; below these again is a series of six dark spots, 

 which are connected with one another inferiorly, so as to 

 form a third rather obscure stripe between the base of the 



