any of various gastropod molluscs, esp. pulmonate snails, that live in fresh or (rarely) salt water; cf. land-snail n. at land, n.1 compounds 2b(b)…
单词 | θ32915 |
释义 | the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Gastropoda > [noun] > order Pulmonifera > Inoperculata > family Limnaeidae or Planorbidae > member of (5) water snail1548 any of various gastropod molluscs, esp. pulmonate snails, that live in fresh or (rarely) salt water; cf. land-snail n. at land, n.1 compounds 2b(b)… ramshorn snail1778 Now usually in form ramshorn. Any of various herbivorous aquatic snails with flat spiral shells that constitute the family Planorbidae. Also ramshorn… physa1834 A small freshwater snail of the genus Physa or family Physidae, having a thin, sinistral shell; (in form Physa) the genus itself. mud snail1890 Any of various snails found in mud; spec. (a) either of two European pond snails of the genus Lymnaea (family Lymnaeidae), the slender-shelled L. g… trumpet-snail1901 = ram's horn, n. 3a. |
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