---
title: "Williams' Side-necked Turtle"
description: "Phrynops williamsi — Gady. Phrynops williamsi, also known commonly as Williams' side-necked turtle, Williams' South American sideneck turtle, William's [sic] South American side-necked turtle, William's [sic] toadhead turtle, and Williams' toadhead turtle, is a species of turtle in the family Chelidae."
canonical: https://animalchecklist.com/pl/animal/williams-side-necked-turtle
last_updated: 2026-09-20
---

# Williams' Side-necked Turtle

> Phrynops williamsi — Gady. Phrynops williamsi, also known commonly as Williams' side-necked turtle, Williams' South American sideneck turtle, William's  [sic] South American side-necked turtle, William's  [sic] toadhead turtle, and Williams' toadhead turtle, is a species of turtle in the family Chelidae.

- Scientific name: *Phrynops williamsi*
- Category: `reptiles` (Gady)
- Habitats: `freshwater` (Jeziora i rzeki)
- iNaturalist observations: 519
- Wikidata: [Q2699603](https://www.wikidata.org/wiki/Q2699603)
- iNaturalist taxon: [39619](https://www.inaturalist.org/taxa/39619)

## Names

- en: Williams' Side-necked Turtle
- de: Williams' Krötenkopfschildkröte
- es: Tortuga herradura

## Countries with the most observations

AR (294), BR (158), UY (10)

## Summary

Phrynops williamsi, also known commonly as Williams' side-necked turtle, Williams' South American sideneck turtle, William's  [sic] South American side-necked turtle, William's  [sic] toadhead turtle, and Williams' toadhead turtle, is a species of turtle in the family Chelidae. The species is endemic to South America.

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

## Photo

![Williams' Side-necked Turtle](https://animalchecklist.com/img/animals/williams-side-necked-turtle/medium.jpg)

Photo: Paisaje Protegido Paso Centurión y Sierra de Ríos · CC0 · inaturalist — https://www.inaturalist.org/observations/108716451

## Machine access

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