Brass Swordtail Xiphophorus kallmani

Brass Swordtail Platyfish male
Brass Swordtail Platyfish male
Brass Swordtail male
The Brass Swordtail, also called the Catemaco Swordtail, is a platyfish endemic to Lake Catemaco drainage in Veracruz, southeastern Mexico. It was reclassified as a distinct species in 2003.
Brass Swordtail Platyfish
Brass Swordtail Platyfish female
Brass Swordtail Platyfish
The male has the brass-coloured, black-bordered "sword" of the lower caudal fin after which the fish are named. Females have a much larger body size, reaching to 10-12cm long, but the slimmer males can reach 12-15cm if the sword is included.
Brass Swordtail Platyfish
Brass Swordtail Platyfish
Brass Swordtail Platyfish
Swordtails are live-bearers. Older females that are no longer breeding can transition to males. (There is also a platyfish endemic to Lake Catemaco, the Lake Catemaco Platyfish, Xiphophorus milleri.)