Valvata cristata
| Valvata cristata | |
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| Two views of a shell of Valvata cristata | |
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Not evaluated (IUCN 2.3)
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| (unranked): | clade Heterobranchia informal group Lower Heterobranchia |
| Superfamily: | Valvatoidea |
| Family: | Valvatidae |
| Genus: | Valvata |
| Subgenus: | Valvata |
| Species: | V. cristata |
| Binomial name | |
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Valvata cristata O. F. Müller, 1774 |
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Valvata cristata is a species of minute freshwater snail with an operculum, an aquatic gastropod mollusk or micromollusk in the family Valvatidae, the valve snails.
The shell of this exceeding small (2–4 mm) Valvata species is very flat in its coiling, and therefore it somewhat resembles a Planorbis shell. However, the shell is dextral in coiling and has an operculum. The shell is transparent, has 3-3.5 whorls in a circular aperture. The umbilicus is wide and open, more than 1/3 of shell diameter.
This species lives in stagnant and slow-moving water.
Myzyk (2002) described life cycle of Valvata cristata.
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