Planorbis corinna

Planorbis corinna is a species of minute, air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk, or micromollusk in the family Planorbidae, the ram's horn snails, or planorbids. All planorbids have sinistral or left-coiling shells.

Planorbis corinna
Scientific classification
Kingdom:
Phylum:
Class:
(unranked):
clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Hygrophila
Superfamily:
Family:
Subfamily:
Planorbinae
Tribe:
Planorbini
Genus:
Species:
P. corinna
Binomial name
Planorbis corinna
Gray, 1850

Distribution

This species is endemic to New Zealand.[1]

Shell description

This species, like all planorbids, has a sinistral shell. The shell in this species is very minute, discoidal, with four slowly increasing whorls. The shell coloration is greenish-white to light brown. The width of the shell is up to 3.3 mm, and the height is up to 0.8 mm.

gollark: Wow, okay then.
gollark: Also, is it just me or have there been lots of CB Thunders about in the Desert?
gollark: Give them five CB golds!
gollark: Is the "people viewing" thing in the cave on a time delay?
gollark: `Wants: Free, offer any hatchling.` - ah, yes, the traditional "free if you give me X" trades.

References

  1. Powell A. W. B. (1979). New Zealand Mollusca. William Collins Publishers Ltd, Auckland, New Zealand, ISBN 0-00-216906-1


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