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> Characiformes (Characins) > Distichodontidae (Distichodus)
Etymology: Xenocharax: Greek, xenos = strange + Greek, charax = a marine fish without identification (Ref. 45335).

Environment: milieu / climate zone / depth range / distribution range Ecologie

; zoet water benthopelagisch. Tropical

Verspreiding Landen | FAO regio's | Ecosystemen | Voorkomen | Point map | Introducties | Faunafri

Africa: middle Congo River basin in Congo Republic (Ref. 52343, 114931), Democratic Republic of the Congo (Ref. 93897, 114931) and Cameroon (Ref. 114931).

Grootte / Gewicht / Leeftijd

Maturity: L_m ? range ? - ? cm
Max length : 18.6 cm SL mannelijk / geslacht onbekend; (Ref. 124477)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 0; Dorsale zachte stralen (totaal): 18-22; Anale stekels 0; Anale zachte stralen: 13 - 15. Diagnosis: Xenocharax crassus is distinguished from Xenocharax spilurus by the presence of a large black mark located anteriorly on the dorsal fin, vs. absence; a small, round, black spot at the posterior half of the caudal peduncle and covering a total of 4 to 6 scales, ±2 to 3 scales in horizontal and vertical direction alike, vs. a large ovoid spot covering a total of about 35 to 46 scales, ±8 to 10 scales in horizontal and vertical direction alike; and a wider mouth, 29-34% of head length vs. 24-29% (Ref. 114931). In addition, for the specimens of similar sizes, X. crassus has a shorter dorsal-adipose distance than X. spilurus; further, most X. crassus specimens have 6 supraneurals vs. 7 in X. spilurus (Ref. 52343, 114931).

Found almost exclusively in forested tributaries or in savannah streams under dense gallery forest (Ref. 114931).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

Pellegrin, J., 1900. Poissons nouveaux du Congo français. Bull. Mus. Natn. Hist. Nat., Paris, 6(3):98-101. (Ref. 52343)

Status op de Rode Lijst van het IUCN (Ref. 130435)

Niet bedreigd (LC) ; Date assessed: 16 February 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Harmless

Gebruik door de mens

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Xenocharax crassus Pellegrin, 1900