According to Spencer, the term amixsak refers to any skin covering, such as the covering of an umiak or kayak. A modern Yupik dictionary gives amiq as meaning “skin” and amirkaq as a sealskin ready for use; the latter may be a more correct term.
When hunting a walrus, it is traditional to butcher the carcass on the ice and take as much as possible back home. If any amount of meat and skin has to be abandoned, the carcass must be given fresh water to drink and the skin must be dissected. If the skin is left behind on the ice, it will sink and become an amixsak, a vengeful monster. An amixsak will come up under an umiak, reach its flippers over the gunwales, and pull the boat under.
Removing the skin covering the flippers on a carcass prevents this danger.
References
Jacobson, S. A. ed. (2012) Yup’ik Eskimo Dictionary, v. I. Alaska Native Language Center, University of Alaska, Fairbanks.
Spencer, R. F. (1959) The North Alaskan Eskimo; a study in ecology and society. United States Government Printing Office, Washington.
A Book of Creatures 
WOW, that is NOT something I’d want to see rising up from the icy depths the cling to my tiny boat. ‘:D
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A vengeful, undead walrus skin? I love it!
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It looks spookt. Person who made this website thanks You’re awesome
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I’m from Belgium and i want to find out more about the myths from my country. I wonder where do you get the knowledge of all these mythical creatures of diferent countrees?
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A lot of reading books 🙂
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Speaking of Belgium he did a bunch of Belgian creatures a while back if I’m not mistaken, like Osschaert, Roeschaard, Kludde, Mahwot … there’s a whole section in the categories! 😀 And he also references all the readings he got them from at the bottom of each article, so if you’re interested you can find it all there! His process is really thorough, scientific even, and he really does read through so much material to bring us all these, many if not most of which are totally unfindable anywhere else on the web … if you’re looking to learn more about your local myths, you truly are in the right place! We’re lucky to have our dear Book of Creatures!
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Aw yes, a revenant!
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