. The Tanganyika problem; an account of the researches undertaken concerning the existence of marine animals in Central Africa . V^ ^ Tilapia pleurotaenia. See p. 202. width of head, extending to between nostril and eye ; 5 or 6 series of scales oncheek ; large scales on the opercle. Gill-rakers short and thick, 13 on lowerpart of anterior arch. Dorsal XIX. 10 ; sixth to ninth spines longest, not quite halflength of head, a little shorter than longest soft rays. Pectoral acutely pointed, aslong as or slightly shorter than the head, not extending to origin of anal. \cntralreaching vent, or net
. The Tanganyika problem; an account of the researches undertaken concerning the existence of marine animals in Central Africa . V^ ^ Tilapia pleurotaenia. See p. 202. width of head, extending to between nostril and eye ; 5 or 6 series of scales oncheek ; large scales on the opercle. Gill-rakers short and thick, 13 on lowerpart of anterior arch. Dorsal XIX. 10 ; sixth to ninth spines longest, not quite halflength of head, a little shorter than longest soft rays. Pectoral acutely pointed, aslong as or slightly shorter than the head, not extending to origin of anal. \cntralreaching vent, or net quite so far. Anal III. 8; third spine as long as andmuch stronger than longest dorsals. Caudal feebly emarginale. Caudal peduncle I?, or I? as long as deep. Scales, mostly ctenoid, vi — ; lat. i. Yellowish » ^ ? ? II 17—19 olive above, silvery beneath, with 10 or 11 dark dorsal cross-bars, the first between the eyes ; yellowish streaks along the series of scales ; fins yellowish, dorsal with some olive marblings, pectoral and anal red at the base. Total length, 155 millim. Described from two specimens Native na
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectm, booksubjectzoology
