Classification / Noms
Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa
>
Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Nothobranchiidae (African rivulines)
Etymology: Aphyosemion: Greek, aphye, -es, sardine, anchovy + Greek, semeion = mark, signal (Ref. 45335); pusillum: The specific epithet refers to the small size of this species (Ref. 119374).
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce pélagique. Tropical
Africa: Okoyo and Pembé River basins in Gabon (Ref. 119374).
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 2.9 cm SL mâle / non sexé; (Ref. 119374)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 9 - 12; Épines anales: 0; Rayons mous anaux: 11 - 14. Diagnosis: This species is distinguished from all other species in the Aphyosemion alpha group by two delimited orange zones on body: orange portion on opercle and orange portion above pelvic fins vs. no orange portion, with beige ventral portion vs. yellow-orange, white bluish or orange, anal fin orange, blue near basal portion and near submarginal red band, no punctuation vs. never a similar colour pattern (Ref. 119374). It is distinguished from all other species of the subgenus Chromaphyosemion by alpha-shaped mark on pre- and postopercular region, especially visible on preserved specimens, vs. no alpha-shaped mark, only some red macules (Ref. 119374).
Body shape (shape guide): fusiform / normal.
Found in the main course of small rivers, muddy streams less than 1 m wide, hidden among dead leaves and water plants, in quiet places (Ref. 119374).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Agnèse, J.-F., L. Chirio, O. Legros, R. Oslisly and H.M. Bhé, 2018. Unexpected discovery of six new species of Aphyosemion (Cyprinodontiformes, Aplocheilidae) in the Wonga-Wongué Presidential Reserve in Gabon. Eur. J. Taxon. 471:1-28. (Ref. 119374)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
Télécharger en XML
Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00603 (0.00250 - 0.01453), b=3.13 (2.93 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Réf.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Vulnérabilité de la pêche (Ref.
59153): Low vulnerability (10 of 100).
🛈