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Siluriformes (Catfishes) >
Auchenoglanididae (Flatnose catfishes)
Etymology: Parauchenoglanis: Greek, para = near + Greek, auchen = neck + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish (Ref. 45335); megalasma: Name from Greek ‘megalasma’ derived from ‘mega’ meaning large and ‘melasma’ meaning black spot, referring to the distinct large blotches along the lateral line present in this species.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce benthopélagique. Tropical
Africa: Angola.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 7.3 cm SL mâle / non sexé; (Ref. 132425)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Rayons mous dorsaux (Total) : 7; Rayons mous anaux: 9; Vertèbres: 32 - 33. This species is distinguished from its congeners ahli, altipinnis, balayi, buettikoferi, longiceps, monkei, pantherinus, punctatus by the presence of vertical rows of blotches (vs. vertical rows of spots or bands in monkei, zebratus) and further differs from these species by a partly round snout (vs. bluntly triangular); differs from stiassnyae with truncated caudal fin (vs. rounded), dorsolaterally positioned eyes (vs. dorsally), and spotted fins (vs. unspotted pectoral, pelvic, and anal fins); it differs from all other species except ernstswartzi by its body having vertical rows of blotches with smaller blotches between them (vs. body with vertical rows of spots or bars and spots between them in ngamensis, lueleensis or absent background spots in patersoni, dolichorhinus, luendaensis, chiumbeensis); differs further differentiated from ernstswartzi by the vertical rows of blotches not extending onto adipose fin (vs. rows extending onto adipose fin), eyes situated dorsolaterally (vs. eyes situated dorsally), and deeper body depth, 18.2%-19.9% SL (vs. shallow body depth, 15.0%-17.4% SL); differs luendaensis by the spotted head and fins (vs. unspotted); differs further from luendaensis, chiumbeensis by the relatively long predorsal length, 40.7%-41.9% SL (vs. shorter, 37.9%-40.1% SL in luendaensisand 35.6%-40.8% SL in chiumbeensis); differs further chiumbeensis by its longer adipose fin, 35.6%-36.9% SL (vs. shorter, 26.0%-34.9% SL) (Ref. 132425).
Cross section: oval.
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Sithole, Y., E.J.W.M.N. Vreven, P.H.N. Bragança, T. Musschoot and A. Chakona, 2024. Nine in one: integrative taxonomic evidence of hidden species diversity in the widespread Zambezi grunter, Parauchenoglanis ngamensis (Siluriformes: Auchenoglanididae), from southern and south-central Africa. Zool. J. Linn. Soc. 202:1-33. (Ref. 132425)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: intérêt commercial mineur
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00525 (0.00219 - 0.01260), b=3.09 (2.88 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.4 ±0.5 se; based on size and trophs of closest relatives |
Résilience (Réf. 120179) |
Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.). |
Vulnérabilité de la pêche (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |