Nannacara

Nannacara anomala, males

Nannacara ( Gr. " nanos " = small; " Acará " Tupi- Guarani term for cichlids ) is a genus consisting of six species of South American cichlids. The genus occurs in fresh waters of the South American Atlantic coast from the mouth of the Orinoco to the Amazon estuary, in the middle and upper Rio Negro in Brazil and Guyana before.

Features

Nannacara species are small-growing cichlids and are 4.5 to just over ten inches long. Her body resembles that of the genus of cichlid Aequidens, but little is laterally flattened, not particularly high backs and elongated, oval shape. The head profile is rounded, the mouth terminal. The lateral line runs close to the long dorsal fin base. Dorsal and anal fin are unbeschuppt. The soft-rayed portions of dorsal and anal fin are, especially in the males, drawn out and pointed. The caudal fin has 14 fin rays, with all other cichlids there are 16 males are significantly larger than the females. Nannacara species are cavity nesters.

Types and distribution

• Nannacara anomala Allgayer 1983 Shiny dwarf cichlid
• Nannacara aureocephalus Allgayer, 1983
• Nannacara quadrispinae Staeck & Schindler, 2004
• Nannacara taenia Regan, 1912

The species of the genus Nannacara primarily inhabit coastal rivers flowing into the Atlantic Ocean approximately from the mouth of the Amazon to the west of the mouth of the Orinoco. In addition to the species already described are still several undescribed forms are known, which could still be assigned to any species. The distribution of the different forms is still poorly understood, as yet not carried out a large scale systematic collections made or have been evaluated.

Two other species described under Nannacara, N. and N. adoketa bimaculata, differ in many features of the physique, in basic details of brood care and in drawing patterns of pups significantly from the other species of the genus. This set already, the authors first described explicitly. For both species, therefore, the new genus Ivanacara was set up in 2006:

• Ivanacara adoketa ( Kullander & Prada Pedreros, 1993)
• Ivanacara bimaculata ( Eigenmann, 1912)

Both species now found in the genus Ivanacara inhabit river basins within the South American continent, namely in the middle and lower upper catchment of the Brazilian Rio Negro ( Ivanacara adoketa ) and in the middle and upper reaches of the Essequibo ( Ivanacara bimaculata ). Your exact distribution is also known inadequate.