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Show 1903.] FROM GALLALAND A N D SOUTHERN ETHIOPIA. 329 CHARACINID^E. 2. HYDROCYON FORSKALTI 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. MlCRALESTES 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. CYPRINHXE. 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 i to a little less than | that of the head ; eye perfectly lateral, its diameter 41 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 arched, its width | to | the length of the head; lips with small papilla? forming transverse plicae; 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 ray 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 grffip 5 between the lateral line and the base of the ventral, 16 or 18 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 interorbital space and the more numerous scales. Three very small specimens, measuring from 18 to 27 millimetres, from the Wabbi, may, I think, be safely referred to the same species. |