Corals of Hawai'i
Order Zoanthidea - zoanthids
| Palythoa tuberculosa - rubber coral |
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| Growth form: colony encrusting on substratum; body wall heavily
encrusted; color that of encrusting material. |
| Fine structure: polyps embedded in thick rubber-like sheet of
coenenchyme which fills the entire space between the polyps; polyps may be up to 8 mm in
diameter. |
| Habitat: surge pools and wave-exposed reefs. |
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| Zoanthus pacificus |
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| Growth form: body wall not encrusting; polyps arise from a
lamellate coenenchyme and are not crowded. |
| Fine structure: polyps may be up to 7 mm diameter. |
| Habitat: shallow water, common in tide pools. |
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