stone crab
Refers to a type of crab, often found in rocky coastal areas. The term may be used for various species depending on region.
磯で石蟹を見つけた。
I found a stone crab on the rocky shore.
Compound of 石 (ishi, 'stone') and 蟹 (kani, 'crab'), referring to a crab associated with stones or rocky areas.