Fin's Fish Guide
The Sheepshead swordtail (Xiphophorus birchmanni) is a freshwater fish of the family Poeciliidae that grows up to 7 cm.
Description
Birchmann's swordtail is a livebearing toothcarp (Poeciliidae) from clear, flowing rivers of eastern Mexico. The species grows to about 5 cm and has a stocky, yellow-brown body with dark crossbars and, in the male, a high dorsal fin; unlike many relatives it lacks the sword-like tail extension. The male fertilises the female internally, after which live young are born. It eats algae, insect larvae and small invertebrates. The fish is harmless to humans.
Frequently asked questions
How do you recognise the Sheepshead swordtail?
The Sheepshead swordtail has a torpedo-shaped body, is mainly yellow-gold and shows a vertical stripes pattern.
Where does the Sheepshead swordtail live?
The Sheepshead swordtail lives in fresh water and is mostly found around open water. North America: Mexico
How big does the Sheepshead swordtail get?
The Sheepshead swordtail grows to a maximum of about 7 cm.
Is the Sheepshead swordtail dangerous to humans?
No, the Sheepshead swordtail is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.
More photos
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Xiphophorus
More from the family Poeciliidae
Want the complete picture on the Sheepshead swordtail?
Point your camera at the fish and Fin names the species in seconds. Free, and the Sheepshead swordtail is one of 12,519 species in the app.