We don't have synonyms for hyraces yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are hyraxes.
(n) :
Any of several small, paenungulate herbivorous mammals of the family Procaviidae from the order Hyracoidea, with a bulky frame and fang-like incisors, native to Africa and the Middle East.
(n) :
Any of several small, paenungulate herbivorous mammals of the family Procaviidae from the order Hyracoidea, with a bulky frame and fang-like incisors, native to Africa and the Middle East.