Elephant ear polyps

Amplexidiscus fenestrafer

ORDER

Corallimorpharia

FAMILY Actinodiscidae

TAXONOMY

Amplexidiscus fenestrafer Dunn and Hamner, 1980, Lizard Island, Great Barrier Reef, Australia.

OTHER COMMON NAMES

English: Giant elephant ear mushroom anemone, disk anemone; French: Anémone disque; German: Grosses Elefantenohr; Italian: Anemone orecchio d'elefante.

PHYSICAL CHARACTERISTICS

Short, column up to 2 in (5 cm) tall. Oral disc typically 8-10 in (20-25 cm), but as much as 18 in (45 cm), in diameter; mouth atop a raised cone. 15-20 tentacles around the margin, and many short, conical tentacles arranged in radial rows on the oral disc. A 0.4 in (10 mm) wide tentacle-free "window" rings the oral disc about 0.4 in (10 mm) from the margin. Color is a dull gray to greenish-brown.

DISTRIBUTION

Australia, Indonesia, Palau, and Guam. HABITAT

In subtidal zones on coral reefs, usually in shallow, quiet water on the inshore side of the reef; attached to vertical walls or coral.

BEHAVIOR Nothing is known.

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