Vertebrate Zoology 59(1): 3-9, doi:
Astyanax laticeps (Teleostei: Characiformes: Characidae) from rivers and streams of Uruguay PDF
María Azpelicueta, MARCELO LoureiroCorresponding author: María Azpelicueta ( azpeli@fcnym.unlp.edu.ar ) © María Azpelicueta, MARCELO Loureiro. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Citation:
Azpelicueta M, Loureiro M (2009) Astyanax laticeps (Teleostei: Characiformes: Characidae) from rivers and streams of Uruguay PDF. Vertebrate Zoology 59(1): 3-9 |  |
Abstract
Astyanax laticeps (Teleostei: Characiformes: Characidae) from rivers and streams of Uruguay. – Astyanax laticeps is recorded from different streams of Laguna Merín, Laguna Castillos and Laguna de Rocha basins (Uruguay). The species is recognized by low body (28.2-37.3 % of SL), blunt snout, 1–4 maxillary teeth, 18–24 branched anal-fin rays, 36–39 perforated scales in lateral line, short caudal peduncle (12.6–13.7 % of SL), dorsal-fin origin nearer snout than caudal-fin rays origin, a horizontally oval or rounded humeral spot, surrounded by a light area, mature males with bony hooks on branched pelvic-fin rays and anteriormost anal-fins rays.
Keywords
Laguna Merín, southern South America, Astyanax, geographical distribution