the sea roach bug or sea slater

animal antennae aquatic armor arthropod benthic biology brown bug bury cancroid chaetiliidae close coast cockroach common crustacean cuirass deepen entomon fast fauna floating focus hide isopod isopoda legs ligia louse macro malacostraca marine multi nature ocean oceanica oneself pagurian roach rock saduria sand sea shell slater small square stone surface tropical wild woodlouse