Cruz’s Pearlfish (Notholebias cruzi)  

This species was described in 1988, it was restricted to the coastal plains near Rio São João, Rio de Janeiro in southeast Brazil.  

Cruz’s Pearlfish reached a length of only about 3 to 4 cm.  

***

The genus Notholebias contains at least four species, one of which is already extinct, the remaining three are close to extinction.  

*********************  

References:  

[1] Wilson J. E. M. Costa; Pedro F. Amorim: Delimitation of cryptic species of Notholebias, a genus of seasonal miniature killifishes threatened with extinction from the Atlantic Forest of south-eastern Brazil (Cyprinodontiformes: Rivulidae). Ichthyological Exploration of Freshwaters 24(1): 63-72. 2013  

*********************  

edited: 31.10.2017