USS Icefish (SS-367)
Icefish may mean: * Channichthyidae, the crocodile icefish or white-blooded fish of the Antarctic region, so-named for their cold habitat and clear (colorless) blood without hemoglobin ** Jonah's icefish (''Neopagetopsis ionah''), of the Southern Ocean * Nototheniidae, the cod icefish or notothens of the Antarctic region, whose members have red, hemoglobin-rich blood * Salangidae, the icefish or noodlefish, a family of small, transparent or semi-transparent ("ice-like") fishes found in fresh, brackish and marine waters in East Asia and the northwestern Pacific Ocean * , a submarine * IceFish (band), a progressive rock project band started by Virgil Donati and Marco Sfogli See also * Ice fishing Ice fishing is the practice of catching fish with lines and fish hooks or spears through an opening in the ice on a frozen body of water. Ice fishers may fish in the open or in heated enclosures, some with bunks and amenities. Shelters Longer ...

Channichthyidae
The crocodile icefish or white-blooded fish comprise a family (Channichthyidae) of notothenioid fish found in the Southern Ocean around Antarctica. They are the only known vertebrates to lack hemoglobin in their blood as adults. Icefish populations are known to reside in the Atlantic and Indian sectors of the Southern Ocean, as well as the continental shelf waters surrounding Antarctica. Water temperatures in these regions remain relatively stable, generally ranging from . One icefish, ''Champsocephalus esox,'' is distributed north of the Antarctic Polar Frontal Zone. At least 16 species of crocodile icefish are currently recognized, although eight additional species have been proposed for the icefish genus ''Channichthys.'' In February 2021, scientists discovered and documented a breeding colony of ''Neopagetopsis ionah'' icefish estimated to have 60 million active nests across an area of approximately 92 square miles at the bottom of the Weddell Sea in Antarctica. The majority ...
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