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A new species of Gymnogeophagus Miranda Ribeiro from Uruguay (Teleostei: Cichliformes)
ABSTRACT
We describe a new species of a substrate-brooding Gymnogeophagus , based on coloration characters. The new species can be distinguished from the remaining substrate-brooding species in the genus by the unique pigmentation of the dorsal fin which consists of light blue, diagonal stripes over a red background in the spiny section and a combination of round, elliptic, and elongated bright blue spots over a red background in the soft section. It can be further distinguished from all other species of Gymnogeophagus by the following combination of characters: a discontinuous bright blue band above the upper lateral line in the humeral area, light blue roundish spots over a red to orange background on the anal fin, and conspicuous bright blue horizontal bands on body. The new species inhabits a wide range of freshwater habitats in the lower rio Uruguay basin, Rio de la Plata coastal drainages and Atlantic Ocean coastal drainages in Uruguay.
Fig. 2 Non-type live specimens of (A) Gymnogeophagus terrapurpura from rio Santa Luc�a basin, Canelones Department, Uruguay, (B) G. rhabdotus and (C) G. meridionalis. (B) and (C) both from rio Negro basin, Tacuaremb� Department, Uruguay.
Hele artikel:
http://www.scielo.br/scielo.php?script= ... so&tlng=en
ABSTRACT
We describe a new species of a substrate-brooding Gymnogeophagus , based on coloration characters. The new species can be distinguished from the remaining substrate-brooding species in the genus by the unique pigmentation of the dorsal fin which consists of light blue, diagonal stripes over a red background in the spiny section and a combination of round, elliptic, and elongated bright blue spots over a red background in the soft section. It can be further distinguished from all other species of Gymnogeophagus by the following combination of characters: a discontinuous bright blue band above the upper lateral line in the humeral area, light blue roundish spots over a red to orange background on the anal fin, and conspicuous bright blue horizontal bands on body. The new species inhabits a wide range of freshwater habitats in the lower rio Uruguay basin, Rio de la Plata coastal drainages and Atlantic Ocean coastal drainages in Uruguay.
Fig. 2 Non-type live specimens of (A) Gymnogeophagus terrapurpura from rio Santa Luc�a basin, Canelones Department, Uruguay, (B) G. rhabdotus and (C) G. meridionalis. (B) and (C) both from rio Negro basin, Tacuaremb� Department, Uruguay.
Hele artikel:
http://www.scielo.br/scielo.php?script= ... so&tlng=en
