Hawaii Sea Urchins (Echinoidea)

This page links to photos of echinoids (sea urchins) we happened to photograph while diving in the Hawaiian Islands. We welcome corrections at uwkwaj@yahoo.com.

Click on a thumbnail below to bring up a page with larger photos and information about that species; for variable species, several different thumbnails may load the same page.

Spiny urchins


Centrostephanus asteriscus


Echinometra mathaei

Echinostrephus aciculatus


Echinothrix calamaris

Lissodiadema purpureum

Short spined urchins


Tripneustes gratilla

Pseudoboletia indiana

Pencil urchins


Colobocentrotus atratus


Chondrocidaris gigantea



Eucidaris metularia

Heterocentrotus mamillatus

Prionocidaris thomasi

Burrowing urchins


Clypeaster reticulatus


Metalia sp.

Mortonia australis


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