hooded seal
A species of seal (Cystophora cristata) known for the inflatable nasal sac on the male's head.
Hooded seals live in the Arctic Ocean.
Common katakana spelling for this animal name.
Kanji spelling is rare; the word is usually written in kana.
From 頭巾 (ずきん, 'hood') + 海豹 (あざらし, 'seal'), referring to the male's inflatable nasal sac that resembles a hood.