Classification / Noms
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Cynolebiinae
Etymology: coamazonicus: Derived from the Latin prefix co (close) and the Latinized word amazonicus (relative to the Amazon) referring to the close proximity of the type locality of the new species to the Amazon Forest.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce benthopélagique. Tropical
South America: Parnaíba River floodplains in Brazil.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 3.6 cm SL mâle / non sexé; (Ref. 94133); 2.8 cm SL (female)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Rayons mous dorsaux (Total) : 17 - 23; Rayons mous anaux: 19 - 23; Vertèbres: 27 - 29. This species belongs to Hypsolebias antenori group but it differs from all other members by having a dark grey to black stripe on the distal margin of the dorsal fin in males (vs. stripe absent). It is similar to H. antenori and H. igneus, and distinguished from the remaining species of the genus, by the presence of a broad orangish red zone on the anal fin in males (vs. red zone absent). It can be diagnosed from H. antenori and H. igneus by having 11 scales in the transverse series (vs. 14) and 11 gill rakers on ventral portion of first branchial arch (vs. 13); from H. antenori by having longer filaments on the anal fin in males, reaching the posterior portion of the caudal fin (vs. reaching basal portion of the caudal fin); and from H. igneus by having 6 pelvic-fin rays (vs. 7) and 27 scales in the longitudinal series (vs. 29-30) (Ref. 94133)
Body shape (shape guide): fusiform / normal.
Found in a seasonal pool (Ref. 94133).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Costa, W.J.E.M., P.F. Amorim and P.H.N. Braganca, 2014. Species limits and phylogenic relationships of red-finned cryptic species of the seasonal killifish genus Hypsolebias from the Brazilian semi-arid Caatinga (Teleostei: Cyprinodontiformes: Rivulidae). J. Zool. Syst. Evol. Res. 52(1):52-58. (Ref. 94133)
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
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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=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.1 ±0.4 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). 🛈 |