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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Poeciliidae (Poeciliids) > Poeciliinae
Etymology: Phalloceros: Greek, phallos = penis + Greek, keras = horn (Ref. 45335); heptaktinos: Derived from the Greek 'hepta' (seven) and 'aktinos' (rays), referring to the number of dorsal-fin rays in females.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
; agua dulce bentopelágico. Tropical
South America: known only from tributarues of the arroio dos Ratos, Jacuí basin in Rio Grande do Sul, Brazil.
Tamaño / Peso / Edad
Madurez: Lm ?  range ? - ? cm
Max length : 2.4 cm SL macho / no sexado; (Ref. 76852); 3.0 cm SL (female)
Descripción breve
Claves de identificación | Morfología | Morfometría
Radios blandos dorsales (total) : 7 - 8; Radios blandos anales: 9 - 11; Vértebra: 31. Diagnosed from its congeners by the absence of the basal process of first gonactinost. Can be differentiated from its congeners by the sexual dimorphism on number of dorsal-fin rays, males with eight rays (very exceptionally seven) and females with seven rays (very exceptionally eight) (Ref. 76852).
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Lucinda, P.H.F., 2008. Systematics and biogeography of the genus Phalloceros Eigenmann, 1907 (Cyprinodontiformes: Poeciliidae: Poeciliinae), with the description of twenty-one new species. Neotrop. Ichthyol. 6(2):113-158. (Ref. 76852)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Harmless
Usos humanos
Herramientas
Informes especiales
Descargar XML
Fuentes de Internet
Estimaciones basadas en modelos
Índice de diversidad filogenética (Referencia 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=0.00851 (0.00379 - 0.01909), b=3.15 (2.96 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Nivel trófico (Referencia 69278) |
3.0 ±0.4 se; based on size and trophs of closest relatives |
Resiliencia (Referencia 120179) |
Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Preliminary K or Fecundity.). |
Vulnerabilidad pesquera (Ref. 59153) |
Low vulnerability (17 of 100). 🛈 |