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Astyanax bacalarensis Schmitter-Soto, 2017

Description

Dorsal soft rays (total): 9 - 11; Anal soft rays: 21 - 27; Vertebrae: 32 - 33. Astyanax bacalarensis is distinguished from its congeners in the Yucatan by the following characters: anal fin origin never overlapping last dorsal-fin ray (always overlapping in A. altior); head length 28% SL or less (27% or more in A. altior); predorsal length, mean 50.4% SL (mean 53% or more in A. altior and A. angustifrons); mean distance between origins of pelvic and anal fins, 20.5% SL (vs. mean 19.3% or less); humeral spot rectangular-triangular to oval (P-shaped to indistinct in A. belizianus and A. brevimanus) (Ref. 118583).

Common Names

  • Bacalar tetra , Spanish , Mexico
  • Sardinita de Bacalar , Spanish , Mexico

    • Taxonomic Hierarchy

    Kingdom: Animalia

    Phylum: Chordata

    Class: Teleostei

    Order: Characiformes

    Family: Characidae

    Genus: Astyanax

    Species: Astyanax bacalarensis Schmitter-Soto, 2017

    Climate Zone

  • Tropical

    • Location

  • Central America: Quintana Roo, Caribbean versant of Yucatan Peninsula in Mexico, south to the Sittie River, Toledo district in Belize, west to Mopán in Guatemala.

    • Biology

    Life cycle and mating behavior

    Habitat

    benthopelagic