Florent's Guide To The Hawaiian, South Pacific and

Indo-Pacific Reefs

Giant Cup Mushroom
Amplexidiscus fenestrafer
Giant Cup Mushroom
Also known as: Elephant Ear Disc Anemone
Category: Corallimorphs
Scientific Name: Amplexidiscus fenestrafer
Size: Up to 12 in. (30 cm)  
Depth: 10-60 ft. (3-18 m)
Distribution: Indo-Pacific, Australia
Cnidaria (Phylum) Cnidarians
└Anthozoa (Subphylum) Sea Anemones and Corals
 └Hexacorallia (Class) Hexacorallians
  └Corallimorpharia (Order) Corallimorphs
   └Discosomidae (Family)
    └Amplexidiscus (Genus)
     └A. fenestrafer (Species)
WoRMS ID: 289401🔗
iNaturalist ID: 472113🔗

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© 2026 Florent Charpin