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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Poeciliidae (Poeciliids) > Poeciliinae
Etymology: Brachyrhaphis: Greek, brachys, eia = short + Greek, raphis = needle (Ref. 45335); hessfeldi: Named in honor of Mr. Gerhard Hessfeld of Hamm, Germany (Ref. 42985).
Eponymy: Gerhard Hessfeld is a German aquarist based in Hamm. He helped collect the type specimen in Panama. (Ref. 128868), visit book page.
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
; sötvatten pelagiska; pH range: 5.0 - 7.1; ej vandrande; djupintervall 0 - ? m. Tropical; 22°C - 29°C (Ref. 42985)
Central America: Panama.
Size / Vikt / Age
Könsmognad: Lm ?  range ? - ? cm
Max length : 5.5 cm TL hane/ej könsbestämd; (Ref. 50894)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 0; Mjukstrålar i ryggfenan (totalt) : 8 - 9; Ryggkotor: 26 - 28. No dark color pattern along sides; segments of base of the gonopodium ray 3 much higher than broad (Ref. 42985).
Body shape (shape guide): elongated.
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Meyer, M.K. and V. Etzel, 2001. Additional notes on the genus Brachyrhaphis Regan, 1913, with description of a new species from Panama (Teleostei:Cyprinodontiformes:Poeciliidae). Zoologische Abhandlungen, Staatliches Museum Für Tierkunde Dresden 51(4):33-39. (Ref. 42985)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00374 - 0.01935), b=3.14 (2.95 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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