noun
concave land hermit crab
A terrestrial hermit crab species, Coenobita cavipes, found in coastal areas of Japan and other regions.
沖縄の海岸でオカヤドカリを見つけた。
I found a concave land hermit crab on the beach in Okinawa.
オカヤドカリは貝殻を背負って陸上を歩く。
The concave land hermit crab walks on land carrying a shell on its back.
General term for hermit crabs, mostly marine. オカヤドカリ specifically refers to the terrestrial species Coenobita cavipes.
Compound of 陸 (oka, 'land') and 宿借り (yadokari, 'hermit crab'), literally 'land hermit crab'.