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Still referred by many as Vieja synspila, a recent taxonomy study has now found them to be a sister species of Vieja melanura northern ranges at the Rio Cazones Mexico. (Juan Miguel 2007) The most southern species is V. maculicauda, which also has the most wide- spread range in the complex. This range extends from the Rio Usumacinta drainage Guatemala through to Panama (Rio Chagres). Vieja macu- licauda is mainly described as lacturine but is very tolerable to different water conditions where they can also be found in brackish water. This will most certainly explain the large distribu- tion range as the fish is able to spread along the coast lines, entering different river mouths along the way. Many species can show a high degree of variabil- ity across different river populations, most nota- bly V. melanura (synspila) and P. bifasciatus. This is where problems have arisen regarding identifi- cation of aquarium stocks. Many keepers have foolishly crossed bred different populations thus creating an aquarium strain which has little re- semblance to both original populations of fish. In my opinion this is probably worse than cross breeding with another species! First of all, why are Vieja called ‘Old Ladt’? To be honest I’m not quite sure. The Latin “Vieja” trans- lates ‘Old Women’ which many people explain is named after the excellent brood care that these cichlids can show, but many hobbyists who keep different genera of cichlids know that this behav- iour is one thing that many cichlid species exhibit. The Blackbelt cichlid is very widespread and has many names in different countries. In Cost Rica, It is known as ‘Pis pis’! Distribution Most of the species are found on the Atlantic slope of Central America where the river systems will empty into the Atlantic side of the Ocean or more specific the Caribbean Sea. Both Paratheraps guttulatus and zonatus are found in the Pacific side drainages of Mexico and Guatemala. The most Northern range of species is Paratheraps fenestratus, with a distribution from the Rio la Antigua in the north to Rio Papaloapan in the south, where it has its largest population. Exotic populations have also been reported in more 16