1. Medium-sized blackish-grey seal with large inflatable sac on the head; of Arctic and northern Atlantic waters
   "The male Cystophora cristata inflated its nasal bladder to attract a mate";
   - hooded seal, bladdernose

Type of: earless seal, hair seal, true seal

Part of: Cystophora, genus Cystophora

Encyclopedia: Cystophora cristata