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 B,. and Illoyo E., Natal. — Types in Amsterdam University. 



4. GtOBIUS MAINDRONI. 

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



Body cylindrical or feebly compressed ; depth of body 6 to 5^ times 

 in total length, length of head 3| to 4j 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 3f (young) to 4 ^ 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 56 millim. 



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



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



Leone. 

 2-5. Ad., ligr., & 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 B^ to 3^ times. Head ]| times as long as broad, naked; snout 

 jounded, 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 ^ length of head. Anal 110, 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 



