---
title: "Lined Water Jelly"
description: "Rhacostoma atlanticum — Other animals. Rhacostoma is a genus of aequoreid hydrozoans."
canonical: https://animalchecklist.com/animal/lined-water-jelly
last_updated: 2026-09-20
---

# Lined Water Jelly

> Rhacostoma atlanticum — Other animals. Rhacostoma is a genus of aequoreid hydrozoans.

- Scientific name: *Rhacostoma atlanticum*
- Category: `other` (Other animals)
- Habitats: `sea` (Sea & coast)
- iNaturalist observations: 1310
- Wikidata: [Q1958236](https://www.wikidata.org/wiki/Q1958236)
- iNaturalist taxon: [229854](https://www.inaturalist.org/taxa/229854)

## Names

- en: Lined Water Jelly

## Countries with the most observations

US (875), BR (56), UY (5)

## Summary

Rhacostoma is a genus of aequoreid hydrozoans. It is monotypic with a single species, Rhacostoma atlanticum Or  Lined Water Jellyfish. It has been reported from the Atlantic coastline of North America, Colombia, western and central Africa. The polyp stage is stolonal, with a tubular hydrotheca and 15 moniliform tentacles when completely extend.

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

## Photo

![Lined Water Jelly](https://animalchecklist.com/img/animals/lined-water-jelly/medium.jpg)

Photo: Vinicius Cerutti · CC0 · inaturalist — https://www.inaturalist.org/observations/351555218

## Machine access

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