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Gonorynchiformes (Milkfishes) >
Kneriidae (Shellears)
Etymology: Grasseichthys: Greek, grassos, -ou = stink, dirt + Greek, ichthys = fish (Ref. 45335); zamba: Name 'zamba' from the Lingala word meaning 'forest or wooded area', in reference to the forested stream habitat of the new species.
Eponymy: Dr Pierre-Paul Grassé (1895–1985) was a French entomologist and biologist. [...] (Ref. 128868), visit book page.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce benthopélagique. Tropical
Africa: Democratic Republic of Congo.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 1.8 cm SL mâle / non sexé; (Ref. 138392)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Rayons mous dorsaux (Total) : 6; Rayons mous anaux: 7; Vertèbres: 39 - 40. This species is distinguished from its congeners by the following set of characters: higher number of vertebrae 39-40* (20* precaudal +19-20* caudal); fusion of caudal-fin hypurals 4 +5; pectoral fin 12.3%-13.7% SL; pelvic fin 10%-11.1% SL; caudal fin 18.8%-20.3% SL; head 40%-42.3% HL; eye diameter 35.5%-38.5% HL; and snout 23.1%-25.9% HL (Ref. 138392).
Body shape (shape guide): elongated; Cross section: oval.
This species inhabits densely shaded, black-water stream with a maximum depth of approximately 1.4 m and a subtrate composed of leaf litter (Ref. 138392).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Bragança, P.H.N.D., R.M. Iyaba and M.L.J. Stiassny, 2025. Description of a new miniature and paedomorphic gonorynchiform (Kneriidae: Grasseichthys) from the Cuvette Centrale, Democratic Republic of the Congo. J. Fish Biol. 2025;1-7. (Ref. 138392)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: sans intérêt
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245). |
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0 |
Vulnérabilité de la pêche (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |