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Characiformes (Characins) >
Lebiasinidae (Pencilfishes) > Lebiasininae
Etymology: Lebiasina: Derived from Greek, lebias, lebiou = a kind of fish (Ref. 45335); marilynae: Named for Marilyn J. Weitzman, who devoted her career to the study of fishes of the families Lebiasinidae and Characidae. A noun.
Eponymy: Mrs Marilyn Jean Weitzman née Sohner (d: 1926) is a Research Associate at the Smithsonian, where she has devoted her career to the study of fishes of the Lebiasinidae and Characidae families. [...] (Ref. 128868), visit book page.
Ambiente: milieu / zona climática / intervalo de profundidade / gama de distribuição
Ecologia
; Água doce bentopelágico. Tropical
South America: Rio Curuá, rio Xingu basin, Brazil.
Tamanho / Peso / Idade
Maturidade: Lm ? range ? - ? cm
Max length : 8.9 cm SL macho/indeterminado; (Ref. 91748)
Descrição breve
Chaves de identificação | Morfologia | Morfometria
Raios dorsais moles (total) : 10 - 11; Raios anais moles: 11. Distinguished from all lebiasinins by having a color pattern consisting of a slightly concave
primary stripe, extending from the tip of the snout to the distal border of the caudal peduncle, a series of approximately 14 small blotches running nearly parallel to the primary stripe along
the ventrally adjacent longitudinal series of scales and converging towards the stripe near the anal fin origin, and the lack of a secondary stripe. Can be further diagnosed from its congeners by having a pair of foramina on the ventral surface of the vomer through which the ramus palatinus of the facial nerve passes, the round dorsal surface of the mesethmoid and the absence of an adipose fin (vs. vomer lacking a pair of foramina, ramus palatinus of the facial
nerve passing lateral to the vomer; and a T-shaped dorsal surface of the mesethmoid (Ref. 91748).
Body shape (shape guide): elongated.
Facultative air-breathing in the genus (Ref. 126274)
Ciclo de vida e comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Netto-Ferreira, A.L., 2012. Three new species of Lebiasina (Characiformes: Lebiasinidae) from the Brazilian Shield border at Serra do Cachimbo, Pará, Brazil. Neotrop. Ichthyol. 10(3):487-498. (Ref. 91748)
Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2025-2 (Global))
Ameaça para o homem
Harmless
Utilização humana
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da internet
Estimativas baseadas em modelos
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00692 (0.00276 - 0.01737), b=3.05 (2.83 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.5 ±0.4 se; based on size and trophs of closest relatives
Vulnerabilidade da pesca (Ref.
59153): Low vulnerability (10 of 100).
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