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Helix (Helocophanta) sowerbiana Fisch., Madagascar, showing embryonic shell.
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Helix citrina (Linnaeus).
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Helice trachiforme : Helix epistylium. Helice macrostome : Helix vittata; Helice sinuee : Helix simata
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Helix Mackenzii (Adams).
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Eyes of Helix pomatia L., retracted within the tentacle.
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Specimen of Helix rosacea Mull., Cape of Good Hope, into which a piece of grass has by some means become introduced. The animal has protected itself by covering the grass with a shelly layer.
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