Fishes from the Tanganyika Territory. 105 



Barbus aphantogramma, sp. n. 



Depth of body 3^ to 3§ in the length, length of head 3^ 

 to 4. Snout as long as or shorter than diameter of eye, 

 which is 3^ to 4 in length of head ; interoibital width 2^. 

 Mouth small, terminal ; one barbel on each side, its length 

 about \ diameter of eye. Dorsal 10-11, equidistant from 

 eye and base of caudal ; third ray a serrated spine, about § 

 length of head ; free edge of fin straight. Anal 8. Pectoral 

 § to f length of head, not reaching pelvics, which are in 

 advance of dorsal. Caudal peduncle 1| to 2 as long as deep. 

 Scales radiately striated, 21 to 23 in a longitudinal series, 6 

 or 7 between dorsal and pelvic, 10 round caudal peduncle ; 

 lateral line absent, or reduced to 2 or 3 anterior scales with 

 tubules. A dark lateral stripe ; a dark spot at origin of 

 dorsal, another at origin of anal, a third at base of caudal ; 

 fins pale. 



Ten specimens, 30 to 38 mm. in total length. 



Near B. ap/eurogramma, Bouleng., from Lake Victoria, 

 which has 25 scales in a longitudinal series and 8 round the 

 caudal peduncle, a longer dorsal spine, and a different 

 coloration. 



PAREUTROPIUS, gen. nov. 



Differs from Eutropius only in the smaller dorsal fin, of a 

 slender spine and three branched rays. 



Pareutropius micristius, sp. n. 



Depth of body 4 to 4| in the length, length of head 5^ to 6. 

 Mouth terminal or snout slightly projecting, as long as 

 diameter of eye, which is 3-J to 3 J in length of head. Band 

 of teeth on palate continuous or narrowly interrupted in the 

 middle. Nasal barbel § to f length of head, maxillary and 

 outer mandibulary longer than head, inner mandibulary about 

 ^ length of head. 12 gill-rakers on lower part of anterior 

 arch. Dorsal I 3, small, well in advance of pelvics ; spine 

 slender, feebly serrated, ^ to ? length of head. Anal 53-55. 

 Pectoral nearly or quite reaching pelvics. Caudal deeply 

 forked. Caudal peduncle not longer than deep. Brownish 

 (in spirit) ; a dark spot above pectoral fin; a dark stripe 

 along lateral line and another above anal fin. 



Seven specimens ; total length 75-100 mm. 



