■iS G(J1J11D.E. 



length of head, ('aiidal peduncle IJ times as long as deep. Scales 

 ciliated, oU-oO in longitudinal series, 8-9 in transverse series between 

 dorsal and anal. Olive, darker on the back, fins purplish ; a dark 

 curved purple line on each side of the head, from the angle of the mouth 

 to the upper border of the gill-cover ; a more or less distinct, yellowish, 

 (iark-edged spot on the base of the pectoral ; anal with a black longi- 

 tudinal streak ; a series of light spots may be present on the dorsals ; 

 caudal with or without small light spots. 



Total length loo mdlim. 



Portuguese Guinea to Lower Niger. — Type in Lcyden Museum. 



1-2. Hgr. Bissau, Portuguese Guinea. Dr. W. J. Ansorge (('.). 



:{-4. Hgr. Lago.s. .1. CiuIukui, Esq. (P.). 



5. Ad. Cold Coast (?). .Ml- liurton (P.). 



(j-10. Hgr. Degania, Lower Niger. 1 'r. W. J. Ansorge (('.). 



11-12. Hgr. AgixM-i, 



lt». UOBIUS HILGENDORFL 

 Pfeff. Tliierw. O.-Afr., Fisdir. p. :, (LSOt!). 



Depth of body 4^ to 5^ times in total length, length of head o.V 

 to 3| times. Snout Ih times diameter of eye, upper profile strongly 

 curved; interorbital region narrow with strong ridges; lower jaw slightly 

 ]irojecting beyond upper, which extends to below centre of eye ; o series 

 of teeth ; no canines. Dorsals VI, 111; third and fourth rays of first 

 dorsal much produced, extending to beyond middle of second dorsal. 

 Anal I n. Caudal pointed, 1§ times as long as head. Scales ciliated, 

 48—52 in longitudinal series, 13 in transverse series. Almost colourless, 

 except a triangular purplish-brown spot below the eye, its point on the 

 extremity of the up^ier jaw; a dark longitudinal streak on the first 

 dorsal. 



Total length 11") miilim. 



Kingani Uiver, East Africa. — Types in Hamburg Museum. 



20. GOBI US POLYZONA. 



Bleek. Arcli. Xeeri. ii. 1867, p. 41:5. and Poiss. Madag. p. .5.5, pi. xvii. fig. 1 

 (187.5) ; Sauv. Hist. Madag., Poi.ss. p. 370, jL xl. fig. 3 (18'.U). 



Body strongly compressed ; depth of body 5 times in total length, 

 length of head 4 times. Head twice as long as broad, naked ; snout 

 rounded, as long as eye, which is nearly 5 times in length of head ; 



