Classification / Names
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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).
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
; Γλυκού νερού βενθοπελαγικό. Tropical
Κατανομή
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South America: Brazil.
Μέγεθος / Βάρος / Age
Maturity: Lm ? range ? - ? cm
Max length : 2.8 cm SL αρσενικό/απροσδιόριστο; (Ref. 128884); 2.9 cm SL (female)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
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).
Life cycle and mating behavior
Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες
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)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Εργαλεία
Special reports
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Διαδικτυακές πηγές
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00311 - 0.01404), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Ελαστικότητα (Ref.
120179): Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
