States/Provinces Summary
Melanorivulus imperatrizensis  in Maranhão, Brazil
Main ref. (119335). Nielsen, D. T. B. and C. S. Pinto, 2015. Melanorivulus imperatrizensis, a new species of killifish (Cyprinodontiformes: Rivulidae) from the rio Tocantins basin, Brazil. aqua, Int. J. Ichthyol. 21(3):136-143 
Status: endemic 
Abundance:  
Comments: Currently known only from the type locality, a small headspring in the urban area of the small village of Bananal, close to the middle rio Tocantins channel, Maranhao, Brazil (Ref. 119335). 
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