▁( 1 8 2 7 - 1 8 9 8 ). ▁ ▁Description ▁P . ▁dam ii ▁is ▁the ▁largest ▁P aret ro plus , ▁reaching ▁the ▁total ▁length ▁of ▁about ▁. ▁No ▁sexual ▁dim orphism ▁exists ▁in ▁size ▁or ▁in ▁other ▁characteristics . ▁These ▁fish es ▁have ▁a ▁rounded ▁shape , ▁with ▁a ▁light ▁p ink ▁/ ▁grey ▁colour ation ▁in ▁absence ▁of ▁vertical ▁bar ring . ▁ ▁Distribution ▁This ▁species ▁can ▁be ▁found ▁in ▁several ▁river ▁bas ins ▁in ▁north western ▁Mad agas car . ▁ ▁This ▁includes ▁populations ▁in ▁far ▁northern ▁Mad agas car ▁that ▁some ▁have ▁spec ulated ▁represented ▁an ▁und es cribed ▁species , ▁but ▁a ▁comparison ▁of ▁spec im ens ▁did ▁not ▁support ▁this , ▁instead ▁maintain ing ▁them ▁as ▁part ▁of ▁P . ▁dam ii . ▁ ▁In ▁contrast , ▁populations ▁in ▁the ▁Mah an ara ▁River ▁in ▁n ort he astern ▁Mad agas car ▁were ▁formerly ▁also ▁included ▁in ▁P . ▁dam ii , ▁but ▁these ▁were ▁described ▁as ▁a ▁separate ▁species , ▁P . ▁lo is elle i , ▁in ▁ 2 0 1 1 , ▁and ▁populations ▁in ▁the ▁An k of ia ▁River ▁bas in ▁in ▁north western ▁Mad agas car ▁( s outh ▁of ▁true ▁P . ▁dam ii ) ▁appear ▁to ▁represent ▁a ▁closely ▁related ▁und es cribed ▁species . ▁ ▁Bibli ography ▁ ▁E sch me yer , ▁William ▁N ., ▁ed . ▁ 1 9 9 8 . ▁Catalog ▁of ▁Fish es . ▁Special ▁Public ation ▁of ▁the