Butterfly Goodeid (Ameca Splendens)

The butterfly splitfin or butterfly goodeid, Ameca splendens, is a bony fish from the monotypic genus Ameca[2] of the splitfin family (Goodeidae). It was formerly found throughout the Ameca River drainage in Mexico; the type locality is Rio Teuchitlán in the vicinity of Teuchitlán, Jalisco. The species was only ever found in an area about 10 miles (15 km) in diameter.[3]
Today, the species is rated as extinct in the wild by the IUCN, though this assessment is obsolete:[4] a remnant population has been found to persist in El Rincón waterpark near the town of Ameca. Possibly, it also exists in a feral state in the USA; individuals apparently derived from escaped or introduced captive stock were met with in southeastern Nevada.[5] For some time, it was a popular fish among aquarists, but hobbyist stocks have declined recently, placing its survival in jeopardy. (From Wikipedia)

Image Source

Image Source

Image Source