Rhopalium
thumb|right|200px|Moon jellyfish (Aurelia aurita), with rhopalia visible in indentations of the bell's rim
thumb|right|200px|Moon jellyfish (Aurelia aurita), with rhopalia visible in indentations of the bell's rim
via Wikidata sitelinks · CC0
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).