Echinoderms

Sea Stars, Sea Urchins, Sea Cucumbers

Sea Cucumbers

Sea cucumbers are “spiny animals”, members of the phylum Echinodermata and relatives of the seastars
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Wana

These long-spined sea urchins, known collectively in Hawaiian as wana (pronounced “vah-na”), are fou
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Shingle Urchin

This distinctive sea urchin is found only in the wave impact zone where it is subject to the full fo
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Rough-Spined Urchin

The rough-spined urchin belongs to the Family Cidaridae, a primitive group of urchins with large, bl
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Rock-boring Urchin

Rock-boring sea urchins are found in tidepools, on exposed reef flats, and in rocks within the wave
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Heart Urchin

Sea urchins are among the most conspicuous invertebrates on Hawaiian shores and reefs. Their spines
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Brittle Star

Brittle stars resemble their relatives the seastars but are different and are in a separate class. B
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Linckia Sea Star

This slender-armed seastar is found in crevices on shallow reefs and under rocks on the reef flat. A
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