mnemic is not @ www.m-w.com
not at www.dictionary.com
if you google for it, it apparently is a sweedish band. and you can see it used in other sentences there.
used in context: "Why do we not always dream of the mnemic impressions of the day we have just lived through?"
i dont think it is misspelled, but perhaps does not exist in the english languange, the book that i am reading is translated from german....Creatures, YGPM
Don't know what you're trying to find, but "mnemonic" and "anemic" are both real words. Johnny Mnemonic is a good short story by William Gibson (and a bad movie starring Keanu Reaves).