Rivulus rutilicaudus, Costa 2005
History

Alternative name Melanorivulus rutilicaudus.

The species is described in the same paper together with 6 other taxa. These are: R scalaris, R. cyanopterus, R. dapazi, R. litteratus, R. rutilicaudus and R. rossoi.

 

  
Rivulus (Melanorivulus) rutilicaudus - male. © Image by W. Costa, Brasil. Taken from the original description.
Rivulus (Melanorivulus) rutilicaudus - female. © Image by W. Costa, Brasil. Taken from the original description.
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Reproduction

No records are available for the breeding of this species but this will not differ very much with the way other small Melanorivulus breed.

 

Remarks :

First of all, life animals are needed for further study of this new species.

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Variations
     
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Map
© Distribution-map by W. Costa, Brasil. Taken from the original description.
   
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Meristics

Max. size 5.0 cm.
Dorsal 11.0,
Anal 14.5,
D/A 8.5,
LL scale count (average)34.5
Pre- dorsal length to % SL – 76.6 %
Depth to % SL – 22.1 %

   
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Literature
Costa, W.J.E.M. 2005. Seven new Species of the Killifish Genus Rivulus (Cyprinodontiformes: Rivulidae) from the Parana, Paraguay and upper Araguaia River Basins, central Brasil. Neotropical Ichthyology, 3 (1), 77, figs. 8-9.    
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