Classificação / Nomes
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Rivulinae
Etymology: wallacei: 'wallacei', i.e., named in honor of naturalist Aflred Russel Wallace (Ref. 128884).
Eponymy: Alfred Russel Wallace (1823–1913) was an English naturalist, evolutionary scientist, geographer and anthropologist and one of the greatest men of science of his age. [...] (Ref. 128868), visit book page.
Meio ambiente: milieu / Zona climática / intervalo de profundidade / faixa de distribuição
Ecologia
; Água doce bentopelágico. Tropical
South America: Brazil.
Tamanho / Peso / Idade
Maturidade: Lm ?  range ? - ? cm
Max length : 2.8 cm SL macho/indeterminado; (Ref. 128884); 2.9 cm SL (female)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
This is distingiushed by the irregular positioning of red dots on the flank of males, that is about half a pupil in diameter, and has a short pelvic fin, not surpassing urogenital papilla at the posterior. For females, the caudal fin has 5 to 8 dark grey to black bars and a rounded black spot smaller than eye. This species has 33 to 36 longitudinal series scales, 13 to 15 anal-fin rays, 28 to 31 caudal-fin rays.
This freshwater fish is found in streams, in the southern Rio Amazonas basin. The largest specimens examined are from Brazil (Ref. 128884).
Ciclo de vida ou comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Costa, W.J.E.M., 2016. Comparative morphology, phylogenetic relationships, and taxonomic revision of South American killifishes of the Melanorivulus zygonectes species group (Cyprinodontiformes: Rivulidae). Ichthyological Exploration of Freshwaters 27(2):107-152. (Ref. 128884)
Status na Lista Vermelha da UICN (Ref. 130435: Version 2025-2 (Global))
Ameaça para os humanos
Harmless
Uso pelos humanos
Ferramentas
Relatórios especiais
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Fontes da internet
Estimativas baseadas em modelos
Índice de diversidade filogenética (Ref. 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=0.00661 (0.00312 - 0.01398), b=3.10 (2.92 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Nível Trófico (Ref. 69278) |
3.1 ±0.4 se; based on size and trophs of closest relatives |
Resiliência (Ref. 120179) |
Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.). |
Vulnerabilidade da pesca (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |