''Xiphophorus birchmanni,'' commonly known as the sheephead swordtail, is a live bearing fish in the family Poeciliidae. It is endemic to the Pánuco River basin in central-eastern Mexico. The

specific name Specific name may refer to: * in Database management systems, a system-assigned name that is unique within a particular database In taxonomy, either of these two meanings, each with its own set of rules: * Specific name (botany), the two-part (bino ...

honours the collector of the

type Type may refer to: Science and technology Computing * Typing, producing text via a keyboard, typewriter, etc. * Data type, collection of values used for computations. * File type * TYPE (DOS command), a command to display contents of a file. * Ty ...

, Heinz Birchmann, from Vienna.

References

birchman Freshwater fish of Mexico Endemic fish of Mexico Pánuco River Natural history of San Luis Potosí Natural history of Tamaulipas Natural history of Veracruz Taxa named by Alfred C. Radda Fish described in 1987 {{Cyprinodontiformes-stub