---
title: "Black Sea Urchin"
description: "Arbacia nigra — Outros animais. Arbacia nigra (= Tetrapygus niger) is a species of sea urchins in the family Arbaciidae."
canonical: https://animalchecklist.com/pt/animal/black-sea-urchin-arbacia-nigra
last_updated: 2026-09-20
---

# Black Sea Urchin

> Arbacia nigra — Outros animais. Arbacia nigra (= Tetrapygus niger) is a species of sea urchins in the family Arbaciidae.

- Scientific name: *Arbacia nigra*
- Category: `other` (Outros animais)
- Habitats: `sea` (Mar e costa)
- iNaturalist observations: 629
- iNaturalist taxon: [1550704](https://www.inaturalist.org/taxa/1550704)

## Names

- en: Black Sea Urchin
- es: Erizo negro

## Countries with the most observations

CL (425), PE (144)

## Summary

Arbacia nigra (= Tetrapygus niger) is a species of sea urchins in the family Arbaciidae. It was first described by the Chilean naturalist Juan Ignacio Molina in 1782. It is found in the southeastern Pacific Ocean on the coasts of South America.

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

## Photo

![Black Sea Urchin](https://animalchecklist.com/img/animals/black-sea-urchin-arbacia-nigra/medium.jpg)

Photo: Allan Harris · CC0 · inaturalist — https://www.inaturalist.org/observations/200719319

## Machine access

`GET https://animalchecklist.com/api/v1/animals/black-sea-urchin-arbacia-nigra?lang=pt` — see [openapi.json](https://animalchecklist.com/openapi.json).