[Gr. Κλειώ (f. κλεί-ειν to celebrate), proper name of the Muse of epic poetry and history; also of a sea-nymph, sister of Beroe (whence the zoological sense).]
1. Zool. A genus of pteropods found in the Arctic and Antarctic seas: see quot.
1835. Kirby, Hab. & Inst. Anim., I. ix. 268. The Boreal Clio … has a gelatinous body, is defended by no shell, and affords food to the whales, [etc.].
2. Astron. The 84th minor planet or asteroid.
1867. Lardner & Dunkin, Handbk. Astron., xv. 230. Clio … was first observed on the 25th of August, 1865, shining as a star of the tenth magnitude.
