Classification / Names
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Poeciliidae (Poeciliids) > Poeciliinae
Etymology: Phalloceros: Greek, phallos = penis + Greek, keras = horn (Ref. 45335); malabarbai: The specific epithet malabarbai is a patronym for Luiz Roberto Malabarba, in recognition of his many contributions to Neotropical ichthyology..
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
; Γλυκού νερού βενθοπελαγικό. Tropical
South America: known only from type locality, creek near Itapoá, São Francisco do Sul, Santa Catarina, Brazil.
Μέγεθος / Βάρος / Age
Maturity: Lm ? range ? - ? cm
Max length : 2.2 cm SL αρσενικό/απροσδιόριστο; (Ref. 76852); 3.2 cm SL (female)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Μαλακές ραχιαίες ακτίνες (συνολικά) : 8; Μαλακές εδρικές ακτίνες: 9 - 11; Σπόνδυλοι: 32 - 33. Distinguished autapomorphically by functional gonapophyses on vertebrae 15, 16, and 17, and also differs from congeners by the width of first pelvic-fin ray in adult males approximately constant tapering gradually to tip. Can be separated from other species of the genus Phalloceros, except Phalloceros megapolos, Phalloceros spiloura, Phalloceros anisophallos, Phalloceros alessandrae, Phalloceros buckupi, Phalloceros uai, Phalloceros lucenorum, Phalloceros pellos, and Phalloceros reisi by the female urogenital papilla curved to the right, located laterally (vs. slightly left turned and with a lateral ramus or straight located along midventral line), and border of the anal aperture in contact with the first anal-fin ray or very close to it (vs. separated from first anal-fin ray by the female urogenital papilla). Can be distinguished from Phalloceros megapolos by the gonopodial appendix normally developed
(vs. greatly expanded in wing like expansions); and from Phalloceros spiloura, Phalloceros anisophallos, Phalloceros buckupi, Phalloceros uai, Phalloceros lucenorum, Phalloceros pellos, and Phalloceros reisi by the halves of gonopodial paired appendix slender, not sickle like, and similar to each other (vs.
Sickle like and different from each other), bearing a medial corner (vs. medial corner absent); and hooks on both halves of gonopodial paired appendix (vs. right half hook absent).
Differs from Phalloceros alessandrae by gonopodial appendix strongly arched at
the distal tip (vs. straight at the distal tip); distal portion bent upward (vs. distal portion straight and oblique forming a 45°angle with the vertical axis); and left and right halves free not coalescent at the base (vs. coalescent at the base) (Ref. 76852).
Life cycle and mating behavior
Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες
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)
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 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00354 - 0.01865), b=3.16 (2.97 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 3.0 ±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).
