Another non-obligate symbiosis is known from encrusting bryozoans and hermit crabs that live in a close relationship. The bryozoan colony (Acanthodesia commensale) develops a cirumrotatory growth and offers the crab (Pseudopagurus granulimanus) a helicospiral-tubular extension of its living chamber that initially was situated within a gastropod shell.
ব্রায়োজোয়া ও সন্ন্যাসী কাঁকড়ার মধ্যে কী ধরনের মিথোজীবিতা দেখা যায়?
non-obligate