| 单词 | pea mussel |
| 释义 | > as lemmaspea mussel pea mussel n. a small, brownish, rounded freshwater bivalve mollusc of the genus Pisidium (family Sphaeriidae or Pisidiidae), having fused siphons. ΚΠ 1950 Sci. News 15 91 Some aquatic animals, such, for example, as certain kinds of midge larvae and pea mussels, are able to live a long time in lake water almost completely devoid of oxygen. 1986 R. Fitter & R. Manuel Freshwater Life Brit. & N.-W. Europe xix. 192 Pisidium spp. (Pea Mussels)... The numerous species of this very common genus range in size from 2–7 mm long; only P. amnicum becomes larger than this. 2001 tr. L.-H. Olsen et al. Small Freshwater Animals 139 Neither mussels nor snails are found in acidic lakes, as there is insufficient calcium in the water for them to construct their houses or shells. Pea mussels are the exception. < as lemmas |
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