Ozawa Crab
Ozawa crab is a freshwater crab belonging to the genus Ozawa. It coexists with Geothelphusa dehaani in river habitats in southern Kyushu, Kagoshima Prefecture, and the Osumi Peninsula in Japan. With G Compared to Dehaani, the maximum body size of the Ozawa crab is smaller and it mainly lives in water (aquatic), while G Dehaani may live both in water and on land (amphibious). The differences in habitat and activity patterns among Geothelphusa species are attributed to their microenvironment and the impact of interspecific competition in symbiosis.
