The Collaborative International Dictionary of English v.0.48:
buffalofish \buffalofish\, buffalo fish \buffalo fish\n. (Zool.) 1. any of several large carplike North American fish. [WordNet 1.5] 2. (Zool.) Any of several large fresh-water fishes of the family Catostomid[ae] (also called suckers see [a href="http:]/www.state.ia.us/dnr/organiza/fwb/fish/iafish/sucker/sucker.htm">Sucker family), of the Mississippi valley. The red-mouthed or brown (Ictiobus bubalus), the big-mouthed buffalofish (Ictiobus cyrinellus, formerly called Bubalichthys urus), the black buffalofish (Ictiobus niger), and the small-mouthed buffalofish (Ictiobus bubalus, formerly called Bubalichthys altus), are among the more important species used as food. [PJC]