Aldabra banded snail  (Rachistia aldabra)

Biology

Very little is known about the biology and ecology of this genus (2), let alone this rarely seen species. Closely related species are known to graze on algae, have high reproductive rates, and live for a relatively long time, around two to three years (2).

One feature that is known about the Aldabra banded snail is that during dry periods, it aestivates on the branches of shrubs (2). Aestivation is a period of dormancy, or inactivity, in which the snail withdraws into its shell and secretes a substance between the shell and plant, which helps the snail conserve vital water (3) (4) (7).

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