---
title: "Mieczyk Hellera"
description: "Xiphophorus hellerii — Ryby. The green swordtail (Xiphophorus hellerii) is a species of freshwater/brackish fish in family Poeciliidae of order Cyprinodontiformes."
canonical: https://animalchecklist.com/pl/animal/green-swordtail
last_updated: 2026-09-20
---

# Mieczyk Hellera

> Xiphophorus hellerii — Ryby. The green swordtail (Xiphophorus hellerii) is a species of freshwater/brackish fish in family Poeciliidae of order Cyprinodontiformes.

- Scientific name: *Xiphophorus hellerii*
- Category: `fish` (Ryby)
- Habitats: `freshwater` (Jeziora i rzeki), `zoo` (Zoo i zwierzęta domowe)
- iNaturalist observations: 2210
- Wikidata: [Q272188](https://www.wikidata.org/wiki/Q272188)
- iNaturalist taxon: [179437](https://www.inaturalist.org/taxa/179437)

## Names

- en: Green Swordtail
- de: Schwertträger
- es: Cola de espada
- fr: Porte-épée
- nl: Zwaarddrager
- pl: Mieczyk Hellera

## Countries with the most observations

TW (599), AU (355), US (306), MX (218), HK (108), ID (82), ZA (34), BZ (26), BR (23), PR (22), JM (14), EC (9)

## Summary

The green swordtail (Xiphophorus hellerii) is a species of freshwater/brackish fish in family Poeciliidae of order Cyprinodontiformes. A live-bearer, it is closely related to the southern platyfish or 'platy' (X. maculatus) and can crossbreed with it.  It is native to an area of North and Central America stretching from Veracruz, Mexico, to northwestern Honduras.

Text: Wikipedia (en), CC BY-SA 4.0 — https://en.wikipedia.org/wiki/Green_swordtail

## Photo

![Mieczyk Hellera](https://animalchecklist.com/img/animals/green-swordtail/medium.jpg)

Photo: Mark McVeigh · CC0 · inaturalist — https://www.inaturalist.org/observations/368020103

## Machine access

`GET https://animalchecklist.com/api/v1/animals/green-swordtail?lang=pl` — see [openapi.json](https://animalchecklist.com/openapi.json).