Description of a new species of Laetacara KULLANDER,1986 from central Brazil and re-description of Laetacara dorsigera (HECKEL,1840) (Labroidei: Cichlidae: Cichlasomatinae)

Abstract

A new species of Laetacara is described from the rio Verde, rio Araguaia basin, São Miguel do Araguaia, Goiás, Brazil; L. dorsigera is re-described. The new species from the rio Verde, rio Araguaia differs from all the species of the genus by its low dorsal-fin ray number. It is distinguished from L. thayeri by the presence of a caudal-fin peduncle spot and by the presence of cycloid scales on side of head. The new species also differs from L. fulvipinnis and L. fl avilabris by some meristic characters. It differs from L. dorsigera by a narrow ectopterygoid and by some meristic characters, and from L. curviceps and L. dorsigera by the lack of a spot on dorsal fin. Laetacara dorsigera differs from L. curviceps and the new species from the rio Verde, rio Araguaia basin by a wide ectopterygoid and by some meristic and morphometric characters; it is distinguished from the other species of the genus by some morphometric and meristic characters.