GOBIUS. 27 



series. Yellowish brown, with large dark brown spots, forming a zigzag- 

 band on each side ; dorsal and anal fins with irregular dark spots ; a 

 deep black spot on the hinder third of the first dorsal. 



Total length 40 millim. 



Umgeni R. and Illovo R., Natal. — Types in Amsterdam University. 



4. GOBIUS MAINDRONI. 

 Sauv. Bull. Soc. Philom. (7) iv. 1880, p. 40. 



Body cylindrical or feebly compressed ; depth of body 5 to 5^ times 

 in total length, length of head 3f to 4| times. Head a little longer than 

 broad, naked, or scaly on the occiput ; snout rounded, as long as or a 

 little longer than eye, which is 3§ (young) to A\ times in length of 

 head; interorbital space very narrow; jaws equal in front; mouth 

 extending to below anterior border of eye ; teeth very small, in a 

 narrow band. Dorsal VI, I 10-11, narrowly separated from each other ; 

 third simple ray produced in male, as long as head. Anal I 9-10, 

 opposite to second dorsal. Pectoral a little shorter than head. Ventral 

 not reaching vent, with a broad basal membrane. Caudal rounded-sub- 

 acuminate, as long as head. Caudal peduncle little longer than deep. 

 Scales strongly ciliated, 34-37 in longitudinal series, 10 in transverse 

 series between dorsal and anal. Yellowish brown, with dark brown 

 spots and cross-bands ; dorsals and caudal with dark brown spots. 



Total length 55 millim. 



Senegal, Sierra Leone, Niger.— Type in Paris Museum. 



1. Ad. N. Sherbo district, Sierra N. W. Thomas, Esq. (P.). 



Leone. 

 2-5. Ad., hgr., & yg. Niger. Mr. J. Paul Arnold (P.). 



5. GOBIUS GILCHRISTI. 

 Bouleng. in Gilchrist, Mar. Invest. S. Afr. i. 1898, p. 8. 



Body feebly compressed ; depth of body 4 times in total length, length 

 of head a£ to 3^ times. Head 1 j times as long as broad, naked; snout 

 rounded, very convex, as long as or a little longer than eye, which is 

 4-| to 5 times in length of head and about twice interorbital width ; 

 lower jaw projecting ; mouth extending to below anterior border of eye ; 

 teeth forming a villiform band. Dorsals VI, I 11, contiguous; longest 

 rays about i length of head. Anal I 10, opposite to second dorsal. 

 Pectoral a little shorter than head. Ventral with a broad basal 

 membrane with a short process on each side, reaching vent or not quite 



