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Characiformes (Characins) >
Distichodontidae (Distichodus)
Etymology: Neolebias: Greek, neos = new + Greek, lebias, ou = a kind of small fish (Ref. 45335).
More on authors: Poll & Gosse.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; pelagic; dH range: ? - 12. Tropical; 24°C - 28°C (Ref. 12468)
Africa: present in the middle and upper Congo River basin (Ref. 81638, 94734, 106245, 106290) and the Nile (Ref. 28714, 94734) basin. Present in Cameroon, Gabon, Republic of Congo, Cabinda (Ref. 81638), Democratic Republic of the Congo and South Sudan (Ref. 94734).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.1 cm SL male/unsexed; (Ref. 7094)
Dorsal spines (total): 0; Dorsal soft rays (total): 10 - 14; Anal spines: 0; Anal soft rays: 12 - 15. Diagnosis: laterosensory canal on lateral surface of head limited to arch of pores around ventral and posterior margins of orbit and associated with preopercle; 6th infraorbital (dermosphenotic) present, with laterosensory canal segment; infraorbital present at posterior margin of orbit; maxilla with 4 or fewer teeth, reaching past vertical through anterior margin of orbit; scaly process present at base of pelvic fin; dark pigmentation along lateral surface of body two scales wide or less; dark band on lateral surface of body passing through lower portion of caudal peduncle; base of caudal fin unpigmented or with rounded spot that falls distinctly short of dorsal and ventral margins of caudal peduncle (Ref. 81638).
Maximum TL was recorded at 5.3 cm (Ref. 7094). Occurs in fringing vegetation; omnivorous browser, consumes plant fragments, algae, protozoans, rotifers, small crustaceans and insects (Ref. 28714).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Daget, J. and J.-P. Gosse, 1984. Distichodontidae. p. 184-211. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 7094)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01413 (0.00599 - 0.03330), b=3.00 (2.80 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.8 ±0.29 se; based on food items.
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).