Nannocharax machadoi (Poll, 1967)
Dwarf citharine
photo by Mertens, P.

Family:  Distichodontidae (Distichodus)
Max. size:  4 cm SL (male/unsexed)
Environment:  pelagic; freshwater,
Distribution:  Africa: Cunene, Okavango, upper Zambezi and Kafue systems, recently taken from the middle Zambezi above Kariba (Ref. 52193).
Diagnosis:  Dorsal spines (total): -0; Anal spines: -0. Description: scales ctenoid; lateral line incomplete, limited to 8 or 9 scales behind head; body slender; fins short; mouth terminal; 10 slender bicuspid teeth in upper and lower jaws; dorsal fin with 3 unbranched and 10-11 branched rays (Ref. 52193). Anal fin with 3 unbranched and 8-9 branched rays (Ref. 11970, 52193). Coloration: translucent, light olive, silvery below; 12—16 irregular bars and a prominent dark “eye” spot at base of caudal fin; caudal fin with 2 or 3 bands; pelvic and anal fins sooty; males darken in breeding dress (Ref. 52913).
Biology:  Inhabits clear, quiet, well-vegetated habitats; common on floodplains and in the Okavango Delta; feeds by picking periphyton and tiny invertebrates from the stems and leaves of water plants; breeds in summer (Ref. 7248, 52193). Attractive and peaceful in aquariums (Ref. 52193).
IUCN Red List Status: Least Concern (LC); Date assessed: 01 March 2007 Ref. (124695)
Threat to humans:  harmless
Country info:   

Entered by: Sa-a, Pascualita - 21.06.94
Modified by: Boden, Gert - 06.05.14
Checked by: Sa-a, Pascualita - 01.08.94

Source and more info: For personal, classroom, and other internal use only. Not for publication.

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