---
title: "Hydraire des amarres"
description: "Pennaria disticha — Autres animaux. Pennaria disticha, also known as the Christmas tree hydroid, is a species of athecate hydroid in the family Pennariidae."
canonical: https://animalchecklist.com/fr/animal/christmas-tree-hydroid
last_updated: 2026-09-20
---

# Hydraire des amarres

> Pennaria disticha — Autres animaux. Pennaria disticha, also known as the Christmas tree hydroid, is a species of athecate hydroid in the family Pennariidae.

- Scientific name: *Pennaria disticha*
- Category: `other` (Autres animaux)
- Habitats: `sea` (Mer et côte)
- iNaturalist observations: 2709
- Wikidata: [Q2591429](https://www.wikidata.org/wiki/Q2591429)
- iNaturalist taxon: [195464](https://www.inaturalist.org/taxa/195464)

## Names

- en: Christmas Tree Hydroid
- de: Weihnachtsbaum-Hydrozon
- fr: Hydraire des amarres

## Countries with the most observations

GR (326), ES (181), AU (131), IN (96), MX (82), US (60), EC (43), KY (36), IT (34), FR (30), JM (25), MQ (25)

## Summary

Pennaria disticha, also known as the Christmas tree hydroid, is a species of athecate hydroid in the family Pennariidae. Colonies are common in the Mediterranean Sea growing on rocks close to the surface. This species has been used in research into prey capture.

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

## Photo

![Hydraire des amarres](https://animalchecklist.com/img/animals/christmas-tree-hydroid/medium.jpg)

Photo: Erica Krimmel · CC0 · inaturalist — https://www.inaturalist.org/observations/3811989

## Machine access

`GET https://animalchecklist.com/api/v1/animals/christmas-tree-hydroid?lang=fr` — see [openapi.json](https://animalchecklist.com/openapi.json).