单词 | ammocœte |
释义 | ammocœten. The larval form of any of various lampreys. ΘΚΠ the world > animals > fish > superclass Agnatha > [noun] > suborder Petromyzontoidei or genus Petromyzon > member of (lamprey) > at certain stage of growth lampret1656 mud iguana1767 mud eel1774 ammocœte1859 1859 W. Yarrell Hist. Brit. Fishes (ed. 3) I. 25 An organ..becomes the suctorial muscle that distinguishes the Lampern from its Ammocœte. 1926 J. S. Huxley Ess. Pop. Sci. 209 The lamprey starts independent life as a larva, the so-called ammocoete or lampern. 1959 Chambers's Encycl. IV. 313/1 Lampreys undergo a metamorphosis. The larva, or Ammocoete, lives in mud or fine sand. It is toothless, with a transverse lower lip and a hood-like upper lip. This entry has not yet been fully updated (first published 1972; most recently modified version published online November 2010). < n.1859 |
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