Hypsolebias gardneri sp. n. A live holotype, UFRJ 11859, male, 36.9 mm SLB live paratype, UFRJ 6797, female, 30.0 mm SL. Photographs by WJEM Costa.

 
 
  Part of: Costa WJEM, Amorim PF, Mattos JLO (2018) Cryptic species diversity in the Hypsolebias magnificus complex, a clade of endangered seasonal killifishes from the São Francisco River basin, Brazilian Caatinga (Cyprinodontiformes, Aplocheilidae). ZooKeys 777: 141-158. https://doi.org/10.3897/zookeys.777.25058