| 单词 | posthorn pond snail |
| 释义 | > as lemmaspost-horn pond snail post-horn pond snail n. see sense 2. post-horn pond snail 2. In full post-horn pond snail. A ramshorn snail of Europe and the Middle East, Planorbarius corneus. Now rare. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Gastropoda > [noun] > order Pulmonifera > Inoperculata > family Limnaeidae or Planorbidae > genus Planorbis > member of post-horn pond snail1776 flat-coil1901 1776 E. M. da Costa Elements Conchol. 202 Posthorns and Lamps. 1876 H. A. Nicholson Man. Zool. (ed. 2) li. 330 The shell of the Spirula—commonly known as the ‘post-horn’—is similar in structure to the shell of the Nautilus. 1901 Westm. Gaz. 16 Dec. 3/1 A good purple dye may also be got from the posthorn pond snail. < as lemmas |
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