#4991 · 🪼 jellyfish, starfish, worms & co

red sea squirt

🇳🇱 Rode zakpijp ·Halocynthia papillosa

🪼 Jellyfish, starfish, worms & co 📍 in Europe, not in NL

10 photos from iNaturalist (Creative Commons) · credits & licences

1. © josepvilanova · CC BY-NC 4.0
2. © Christophe Quintin · CC BY-NC 4.0
3. © David Renoult · CC BY-NC 4.0
4. © luismartinezartola · CC BY-NC 4.0
5. © David Renoult · CC BY-NC 4.0
6. Epirus, Epirus and Western Macedonia, Greece:© Falk Viczian Solarboot-Projekte gGmbH · CC BY-NC 4.0
7. Girona, Cataluña, Spain:© Bernat Espigulé · CC BY-NC 4.0
8. Bouches-du-Rhône, Provence-Alpes-Côte d'Azur, FR:© Frédéric ANDRE · CC BY-NC 4.0
9. Area naturale marina protetta Secche di Tor Paterno, Italia:© Filippo Fratini · CC BY-NC 4.0
10. Punta Llebeig, Dragonera, Balearic Islands, Spain:© Luis P. B. · CC BY-NC 4.0

what is it?

Halocyntia papillosa , also known as the red sea squirt is a sea peach or sea squirt , a species of tunicate.

base stats

NL sightings 0iNaturalist, research grade
worldwide 2,571iNaturalist observations

Bars compare against all animals on log scales: up to 300,000 Dutch and 600,000 worldwide sightings (the most-seen species), 150 t (blue whale), 30 m and 400 years (Greenland shark).

fun facts

No confirmed wild sightings in the Netherlands on iNaturalist: you'd have to travel for this one.
2,571 observations worldwide on iNaturalist.
Scientifically named in 1767 (259 years ago).

fact sheet

English: red sea squirt
Nederlands: Rode zakpijp
scientific name: Halocynthia papillosa
class: Ascidiacea
order: Stolidobranchia
family: Pyuridae
sightings in NL: 0
sightings in Europe: 2,340
sightings worldwide: 2,571
GBIF records in NL: 0
weight: —
length: —
lifespan: —
named: 1767

Sources: iNaturalist taxon 118722, Wikidata Q530357, GBIF 2331880, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.