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Crenicichla ypo (Teleostei: Cichlidae), a new species from the middle Paraná basin in Misiones, Argentina

2010; Sociedade Brasileira de Ictiologia; Volume: 8; Issue: 3 Linguagem: Inglês

10.1590/s1679-62252010000300009

1982-0224

Jorge Rafael Casciotta, Adriana Almirón, Lubomír Piálek, Sergio Gómez, Oldřich Říčan,

Fish Ecology and Management Studies

A new species of Crenicichla, C. ypo, is described from the Arroyo Urugua-í, a left-hand tributary of the middle Paraná River, Misiones province, Argentina. The new species is recognized by 6 to 8 irregular blotches along the upper lateral line, absence of scattered dark spots on flanks, low number (47-55) of E1 scales, and a slightly prognathous lower jaw. Females have a distinctive coloration of the dorsal fin, with a wide black longitudinal stripe on the distal portion with an equally wide red stripe below it.