Fierasfer


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Fi`e`ras´fer


n.1.(Zool.) A genus of small, slender fishes, remarkable for their habit of living as commensals in other animals. One species inhabits the gill cavity of the pearl oyster near Panama; another lives within an East Indian holothurian.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.