26 GOBIIDJE. 



2. G0B1US RHODOPTERUS*. 

 GoUus reticulatus (non Eichvv.), Cuv. & Val. Hist. Poiss. xii. p. 50 (1837j ; 



Moreau, Poiss. France, ii. p. 217 (1881). 

 GoUus rhodopterus, Gunth. Cat. Fish. iii. p. 16 (1861) ; Playf. & Letourn. Aim. & 



Mag. N. H. (4) viii. 1871, p. 386. 

 GoUus sp., Gervais, Zool. Pal. Gener. p. 202, pi. xlv. fig. 2 (1869). 



Body cylindrical ; depth of body 4^- to 5 times in total length, length 

 of head 3^ to 3§ times. Head If times as long as broad, naked; snout 

 rounded, as long as or a little shorter than eye, which is 3| to 4J times 

 in length of head ; interorbital space very narrow ; lower jaw pro- 

 jecting; mouth extending to below anterior third or centre of eye; 

 teeth in a villiform band ; no canines. Dorsal VI, I 8-9, narrowly 

 separated from each other, longest rays 5 to f length of head. Anal 

 I 8-9, opposite to second dorsal. Pectoral f to f length of head. 

 Ventral with a broad basal membrane, reaching vent. Caudal rounded, 

 ■f to f length of head. Caudal peduncle twice as long as deep. Scales 

 thin, ciliated, 40-46 in longitudinal series, 12-14 in transverse series 

 between dorsal and anal ; anterior part of back naked. Pale brownish- 

 olive, irregularly spotted and reticulated with darker ; dorsal and caudal 

 fins with small dark spots; first dorsal with a large black spot 

 posteriorly in the male. 



Total length 45 millim. 



Mediterranean, entering rivers in Algeria. — Types in Paris Museum. 



1-4. Ad. & hgr. Near Gnelma, Algeria. Sir L. Playfair (P.). 



5-8. Ad. Garan Achkel, „ R. Gurney, Esq. (P.). 



3. GOBIUS DEWAALII. 

 M. Weber, Zool. Jahrb., Syst. x. 1897, p. 145. 



Depth of body 4J times in total length, length of head nearly 3^ times. 

 Dead naked except on the gill-cover; snout shorter than eye, which is 

 nearly 4 times in length of head ; interorbital region very narrow ; 

 mouth subinferior, extending to beyond vertical of posterior border of 

 eye ; teeth in two series, with a curved canine on each side of the lower 

 jaw. Dorsals VI, I 9. Anal I 9. Ventral reaching vent. Caudal 

 rounded. Scales ciliated, 26 in longitudinal series, 10 in transverse 



'* This species is probably identical with G. mierops, Krbyer, Danm. Fiske, i. p. 416 

 (1840), and Collett, Vidensk. Selsk. Forh. Christiania, 1874, p. 168, of the northern 

 coasts of Europe, which has been confounded with G. minutus, Gmel. Cf. E. G. 

 Boulenger, Proc. Zool. Soc. 1911, p. 40. — Only tlie African specimens are described here. 



