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Echinostrephus aciculatus

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description Echinostrephus aciculatus Overview

Echinostrephus aciculatus is a small sea urchin in the family Echinometridae, first described by Alexander Agassiz in 1863. It is associated with the Indo-Pacific and belongs to a genus commonly called boring sea urchins because members can occupy holes or cavities in hard substrates. The species has thin, sharply pointed spines; observed individuals are small, with an overall diameter reported at roughly 50 millimetres. It is of interest in marine invertebrate identification.

help Echinostrephus aciculatus FAQ

What is Echinostrephus aciculatus?

Echinostrephus aciculatus is a small sea urchin in the family Echinometridae. Alexander Agassiz first described the species in 1863.

Why are Echinostrephus sea urchins called boring sea urchins?

Members of Echinostrephus can occupy holes or cavities in hard substrates. This sheltering behavior is the reason the genus is commonly associated with boring sea urchins.

Where does Echinostrephus aciculatus live?

The species is associated with the Indo-Pacific. It lives in marine habitats where hard surfaces can provide cavities or other shelter.

Is Echinostrephus aciculatus a large sea urchin?

No, it is described as a small sea urchin. It belongs to Echinometridae, the same family that includes several other hard-substrate-associated urchins.

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