1903.] FROM GALLALAXD AXD SOUTHERN ETUIOPIA. 329 



ChARACINIDvE. 



2. Hydrocyon forskalii Cuv. 



Several young specimens from Lake Gandjule. 



3. Alestes affinis Gthr. 



Several specimens, from the Wabbi and Modjo Rivers. 



4. Alestes macrolepidotus Cuv. 

 Several specimens from the Omo River. 



5. Micralestes acutidens Peters. 



Several specimens from the Omo River. 



This fish, originally described from Mozambique, has since 

 been found in the Ubanghi, in the Nile, and in the Niger. 



Cyprixidje. 



6. Labeo neumanni, sp. n. (Plate XXIX.) 



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

 4-^- to 4| times. Head 1:^ to 1^ as long as broad ; snout rounded, 

 with small horny warts, its length |- to a little less than | that of 

 the head ; eye perfectly lateral, its diameter 4-i- to 5| times in the 

 length of the head ; interorbital width ^ length of head, 2^ to 3 

 times the diameter of the eye ; mouth strongly ai-ched, its width 

 |- to g the length of the head ; lips with small papillge forming 

 transverse plicas ; lower lip with a fringe of conical papillae ; 

 rostral flap large, with denticulate edge ; a minute barbel in the 

 corner of the mouth, hidden under the folds of the mouth. Dorsal 

 fin composed of III 11-12 rays, a little nearer the end of the 

 snout than the root of the caudal, its upper edge concave, the last 

 simple ray longest and as long as or slightly longer than the head. 

 Anal with III 5 rays, falcate, its longest ray nearly as long as the 

 head, reaching or nearly reaching the root of the caudal. Pectoral 

 subfalciform, as long as or a little longer than the head, not quite 

 reaching the ventral, the first lay of which falls below the 4th or 

 5th branched ray of the dorsal. Caudal fin deeply emarginate, 

 crescentic when fully spread out. Caudal peduncle 1| to 1^ as 

 long as deep. Scales finely striated longitudinally, 39-40 ^^nf^j 

 5 between the lateral line and the base of the ventral, 16 or l'8 

 round the caudal peduncle. Olive above, whitish beneath ; fins 

 greyish (in spirit). 



Five specimens, measuring 140 to 320 millimetres, from the 

 Modjo and Wabbi Rivers. 



Distinguished from L. gregorii Gthr. by the broader inter- 

 orbital space and the more numerous scales. 



Three very small specimens, measuring from 18 to 27 milli- 

 metres, from the Wabl^i, may, I think, be safely referred to the 

 same species. 



