hyperotreta
Hy`per*o*tre"ta, n. pl. Etym: [NL., fr. Gr. (Zoöl.) Defn: An order of marsipobranchs, including the Myxine or hagfish and the genus Bdellostoma. They have barbels around the mouth, one tooth on the plate, and a communication between tionnasal aperture and the throat. See Hagfish. [Written also Hyperotreti.]