ENANTIOPUS. 449 



1| times as long as eye, which is 3 (young) to 4 times in length of head 

 and equals or exceeds interorbital width ; mouth extending to between 

 nostril and eye ; 3 series of scales on the cheek. Gill-rakers short, 

 11 to 15 on lower part of anterior arch. Dorsal XI1I-XV 15-17 ; 

 spines feeble, increasing in length to the last, which measures ^ to 

 f length of head ; last soft rays produced in the adult, at least § length 

 of head. Anal III 13-17 ; third spine ^ length of head. Pectoral as 

 long as or a little shorter than head, extending to vertical of origin of 

 anal. Ventral reaching origin of anal or a little beyond. Caudal with 

 deep crescentic notch. Caudal peduncle twice as long as deep. Scales 



3-4 ■ 22-31 



finely denticulate, 40-44 ^o • lateral lines xjm- Grey or brown above, 

 with or without a pale blue spot on each scale, white beneath ; a lateral 

 series of dark spots may be present ; a dark opercular spot ; adult with 

 the chin and the branchiostegal membrane blackish ; a large dark spot 

 may be present in the middle of the spinous dorsal ; ventral and anal 

 edged with black in the adult ; male with large black and white ocelli 

 on the spinous dorsal and oblique dark bands on the soft ; caudal with 

 or without crescentic dark bands. 



Total length 135 millim. 



Lake Tanganyika. — Type in Congo Museum, Tervueren. 



Capt. Lemaire (C). 



Dr. W. A. Cunnington (C). 



1. Ad. 



Moliro. 



2-3. Ad. 



M 



4-5. Ad. 



Mbete. 



6-7. Hgr. 



Kigoma. 



8. Ad. 



Semburi. 



9. Ad. 



Rumonge. 



10-12. Ad. 



Usumbimi. 



13. Skel. 



>> 



14. Ad. 



Tulo. 



Prof. J. E. S. Moore (C). 

 Dr. L. Stappers (C). 



2. ENANTIOPUS OCHROGENYS. 

 Bouleng. Eev. Zool. Afr. iii. 1914, p. 444. 



Depth of body 4| times in total length, length of head 3£ to 3| times. 

 Head 2 to 2£ times as long as broad ; snout with strongly curved upper 

 profile, as long as broad, as long as eye, which is 3 times in length of 

 head and § interorbital width ; mouth extending to between nostril and 

 eye; 3 series of scales on the cheek. Gill-rakers short, 10 or 11 on 

 lower part of anterior arch. Dorsal XIV 14-15; spines feeble, 



vol. in. 2 G 



