Labels:dialog box | flower | hakham OCR: ECHINODERMS Sea Urchins Three main groups of urchins inhabit the Caribbean: the long- spined, short -spined, and slate- pencil urchins Bathers and shell collectors may also know . fourth type 01 urchin, sand dollar flat round creature that dwells in the sand flats and intertidal zones and whose white exoskeleton Is collected especially around the Gulf and Florida coasts The best- -known species scuba divers long -spined or diadema urchin, 1OF4 rouno thai besi
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