Biology
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A common but inconspicuous species (Ref. 9341). Found in cracks, crevices, under ledge overhangs and other recesses on rocky reefs, steep slopes, and especially on walls. Small individuals often stay near the protective spines of long spined urchin, Diadema mexicanum (Ref. 5227). Anterolateral glandular groove with venom gland (Ref. 57406).