fire crab (Pyromaia tuberculata)
A species of crab; the Japanese name literally means 'one-horned spider crab'. Typically written in katakana as a biological name.
The fire crab also inhabits the waters around Japan.
Katakana spelling is standard for this species name; usually written in kana.
Kanji spelling is rare and may not be widely recognized; lists it but gives no priority.
Compound of 一角 (いっかく, 'one horn') + 蜘蛛蟹 (くもがに, 'spider crab'), referring to the crab's appearance. The exact derivation is uncertain.