Geophagus argyrostictus, a new species of cichlid fish from the Rio Xingu, Brazil

Kullander S.O.

Date de parution: avril 1991
Volume: 15
Number: 2
Pagination: 129-138
Editeur: Société Française d'Ichtyologie
doi: https://doi.org/10.26028/cybium/1991-152-004
Résumé

Geophagus argyrostictus sp. n. reaches 162 mm SL and is distinguished from other Geophagus species by having silvery reflecting spots on the side and a dark vertical stripe below the eye. It is the first substrate brooding species to be recorded in the genus. Collecting localities are in the upper (Cachoeira von Martius) and lower (Belo Monte, Altamira, Cachoeira do Espelho, Rio Curuá) Rio Xingu drainage. Samples from the two geographical areas differ slightly in colour, morphometry and meristics.

Mots-clés: Amazon River - Brazil - Brooding behaviour - Cichlidae - Geophagus argyrostictus - New species - Taxonomy
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