---
title: "Collector Urchin"
description: "Tripneustes gratilla — Otros animales. Tripneustes gratilla, the collector urchin or halloween urchin, is a species of sea urchin."
canonical: https://animalchecklist.com/es/animal/collector-urchin
last_updated: 2026-09-20
---

# Collector Urchin

> Tripneustes gratilla — Otros animales. Tripneustes gratilla, the collector urchin or halloween urchin, is a species of sea urchin.

- Scientific name: *Tripneustes gratilla*
- Category: `other` (Otros animales)
- Habitats: `sea` (Mar y costa)
- iNaturalist observations: 3944
- Wikidata: [Q1811877](https://www.wikidata.org/wiki/Q1811877)
- iNaturalist taxon: [122127](https://www.inaturalist.org/taxa/122127)

## Names

- en: Collector Urchin
- de: Bischofsmützenseeigel
- fr: Oursin-bonnet de prêtre

## Countries with the most observations

US (1096), AU (491), ID (241), PH (195), EG (176), TW (169), KE (116), NC (89), TZ (87), HK (59), ZA (58), PF (53)

## Summary

Tripneustes gratilla, the collector urchin or halloween urchin, is a species of sea urchin. Collector urchins are found at depths of 2 to 30 metres (7 to 100 ft) in the waters of the Indo-Pacific, Hawaii, the Red Sea, and The Bahamas.  They can reach 10 to 15 centimetres (4 to 6 in) in size.

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

## Photo

![Collector Urchin](https://animalchecklist.com/img/animals/collector-urchin/medium.jpg)

Photo: Sofie Meeus · CC0 · inaturalist — https://www.inaturalist.org/observations/163184351

## Machine access

`GET https://animalchecklist.com/api/v1/animals/collector-urchin?lang=es` — see [openapi.json](https://animalchecklist.com/openapi.json).