;]S GOBIID.E. 



length of head. Caudal peduncle IJ times as long as deep. Scales 

 ciliated, 30-35 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, 

 dark-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 13-j millim. 

 Portuguese Guinea to Lower Niger. — Type in Lejden ^luseum. 



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



3-4. Hgr. Lagos. J. Cadnian, Esq. (P.). 



5. Ad. Gold Coast {?). Mrs. Burton (P.). 



G-10. PIgr. Degama, Lower Niger. l)i-. W. J. Ansorge (C). 



11-12. Hgr. Agberi, 



19. GOBIUS HILGENDORFI. 

 Pleff. Tlilorw. O.-Afr., Fischo, p. .5 (189G). 



Depth of body 4^ to 5 J times in total length, length of head 3-^- 

 to 3| times. Snout 1^ times diameter of eye, upper profile strongly 

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

 ]U'ojecting beyond upper, which extends to below centre of eye ; 3 series 

 of teeth ; no canines. Dorsals VI, I 11 ; third and fourth rays of first 

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

 Anal I 9. Caudal pointed, 1§ 'times as long as head. Scales ciliated, 

 48-52 in longitudinal series, 13 in transverse series. Ahiiost colourless, 

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

 extremity of the upper jaw; a dark longitudinal streak on the first 

 dorsal. 



Total length 115 millim. 



Kiugani River, East Africa. — Types in Hamburg Museum. 



20. GOBIUS POLYZONA. 



Bleek. Arch. Neerl. ii. 18G7, p. 413, and Poiss. Madag. p. .55, pi. xvii. fig. 1 

 (187r») ; Sauv. Hist. Madag., Poiss. p. 370, pi. xl. fig. 3 (1891). 



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 ; 



