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Teleostei (teleosts) > Cyprinodontiformes (Rivulines, killifishes and live bearers) > Poeciliidae (Poeciliids) > Poeciliinae
Etymology: Phalloceros: Greek, phallos = penis + Greek, keras = horn (Ref. 45335); titthos: From the Greek titthós, a woman’s breast or animal’s teat. In allusion to the presence of small papillae at the mandibular symphysis of large adult females. Also alluding to the fact that this character is only present in adult females.

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; benthopelagic. Tropical

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South America: coastal drainages flowing to Baia de Guaratuba and Baia de Paranaguá in Paraná, Brazil.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 2.6 cm SL male/unsexed; (Ref. 76852); 4.5 cm SL (female)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 8 - 9; Anal soft rays: 9 - 11; Vertebrae: 30 - 32. Diagnosed from all other species of the genus Phalloceros by having a very large papilla at the mandibular symphysis of large adult females (Ref. 76852).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

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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)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Least Concern (LC) ; Date assessed: 07 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [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).

Trophic level (Ref. 69278): 3.0 ±0.4 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Phalloceros titthos Lucinda, 2008