89 



black inferior margin , nearly as long as the whole body (caudal 

 fiurays iucluded). Maudibulary barbels with very slender filaraents. 

 Mandibulary teeth circa 22. Pectoral spine strongly serrated along 

 both edges, a little louger tlian the head and a little shorter than 

 the dorsal spine; the latter not serrated anteriorly, or (in a sraall 

 specimen of 8,5 cm. and with A 12) with a few obsolete denticulations 

 towards its point. The ventral does not yet reach the anal. Distance 

 between aual and base of inner ray of ventral three-fourths of that 

 between base of outer ventral ray and inner pectoral. Adipose fin 

 one and a third of the length of the head; distance between dor- 

 sal and adipose fin a little less than one-third of the base of the 

 former. Caudal deeply forked. 



Two specimens, the larger with a total length of 10,5 cm. 



Length of the body without caudal finrays 8,2 cm. 



Distichodus antonii. 

 D 24; A 15; LI. circa 65; Ltr. 10/13. 



Each jaw with two series of teeth. 



Height of the body a little more than one-third of the total 

 length (caudal included) ; length of the head (without the opercular 

 flap of skin) two-ninths. Snout a little more than one-third of 

 the length of the head. Eye situated in the middle of the length 

 of the head, its diameter three-tenths of the latter. Interorbital 

 space convex, its width being half the length of the head. Upper 

 jaw a little projecting beyond the lower; the latter with eighteen 

 teeth in the outer row. Distance between dorsal and adipose fin 

 more than twice the base of the latter. Distance between the vent 

 and the end of the ventrals four-ninths of the length of the 

 latter. 



Silvery brownish (in spirits) with several darker vertical bands. 



One specimen, total length 12,8 cm; Bayari-sea, vernacular^ 

 name Mbutu. 



