---
title: "Square-tailed Worm"
description: "Eiseniella tetraedra — Other animals. No summary available."
canonical: https://animalchecklist.com/animal/square-tailed-worm
last_updated: 2026-09-20
---

# Square-tailed Worm

> Eiseniella tetraedra — Other animals. No summary available.

- Scientific name: *Eiseniella tetraedra*
- Category: `other` (Other animals)
- Habitats: unknown
- iNaturalist observations: 416
- Wikidata: [Q10683619](https://www.wikidata.org/wiki/Q10683619)
- iNaturalist taxon: [347614](https://www.inaturalist.org/taxa/347614)

## Names

- en: Square-tailed Worm
- de: Wasser-Regenwurm
- fr: Ver à queue carrée

## Countries with the most observations

US (126), CA (33), PL (18), DE (17), FR (10), GB (9), ES (8), GR (8), AT (5), RU (5), NZ (4)

## Photo

![Square-tailed Worm](https://animalchecklist.com/img/animals/square-tailed-worm/medium.jpg)

Photo: Mike Palmer · CC0 · inaturalist — https://www.inaturalist.org/observations/84609522

## Machine access

`GET https://animalchecklist.com/api/v1/animals/square-tailed-worm?lang=en` — see [openapi.json](https://animalchecklist.com/openapi.json).