Amastra whitei is an extinct species of air-breathing land snail, a terrestrial gastropod mollusk, belonging to the family Amastridae. Like all species in the genus Amastra, it was endemic to the Hawaiian Islands.
Scientific Classification
- Kingdom: Animalia
- Phylum: Mollusca
- Class: Gastropoda
- Subclass: Heterobranchia
- Order: Stylommatophora
- Family: Amastridae
- Genus: Amastra
- Species: A. whitei
Description While specific detailed descriptions of Amastra whitei's shell morphology are limited in easily accessible records beyond its classification, species within the genus Amastra generally possess conical to ovate shells, often sculptured with fine striations or ribs, and vary in size. They are typically dextral (right-handed coiling).
Distribution and Habitat Amastra whitei was historically found only on the island of Molokai, one of the main Hawaiian Islands. Its exact microhabitat within Molokai would have likely been within the island's native forests, living among leaf litter, on plants, or under rocks, typical for arboreal or semi-arboreal land snails of the region.
Conservation Status and Extinction Amastra whitei is listed as Extinct by the International Union for Conservation of Nature (IUCN) Red List. The last known observation of this species was in the 1890s. Its extinction, like many other endemic Hawaiian land snails, is primarily attributed to a combination of factors, including extensive habitat loss due to deforestation for logging and agriculture, and the introduction of non-native invasive species. Predation by introduced rats (Rattus species) and the carnivorous rosy wolf snail (Euglandina rosea) are believed to have played a significant role in its decline and ultimate disappearance.