pea crab
Refers to any small crab of the family Pinnotheridae, often found living inside bivalves. Typically written in kana.
The pea crab is a small crab that lives inside bivalves.
Katakana spelling is common for this animal name; usually written in kana.
Kanji spelling with standard okurigana; rarely used in practice.
Irregular okurigana variant; it is irregular.
Compound of 隠れ (kakure, 'hiding') + 蟹 (kani, 'crab'), literally 'hiding crab'. The exact derivation is uncertain, but the name likely refers to its habit of living concealed inside shellfish.