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Amastra Mucronata Citrea
''Amastra'' is a genus of small air-breathing land snails, terrestrial animal, terrestrial pulmonate gastropod mollusks in the family Amastridae. Like many Hawaiian land snails, species in this genus have adapted to a specific ecological niche and have evolved in relative isolation. They are thriving in wet or moderately wet forested areas. Many of the species in this genus have become extinct in recent times or have become critically endangered through habitat loss or predation. This loss is often highlighted as part of the broader biodiversity crisis faced by the Hawaiian Islands. Description The elongated shell is typically dextral (but some are sinistral), ranging from globose-conic to oblong-conic in shape. It may be umbilicate or imperforate. he shell surface might show growth striations or a fine malleation. The coloration varies, often appearing dull or dark, but sometimes light with a dull, darker, or yellowish cuticle. The shell consists of 5½ to 8 Whorl (mollusc), wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amastra Elongata
''Amastra'' is a genus of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Amastridae. Like many Hawaiian land snails, species in this genus have adapted to a specific ecological niche and have evolved in relative isolation. They are thriving in wet or moderately wet forested areas. Many of the species in this genus have become extinct in recent times or have become critically endangered through habitat loss or predation. This loss is often highlighted as part of the broader biodiversity crisis faced by the Hawaiian Islands. Description The elongated shell is typically dextral (but some are sinistral), ranging from globose-conic to oblong-conic in shape. It may be umbilicate or imperforate. he shell surface might show growth striations or a fine malleation. The coloration varies, often appearing dull or dark, but sometimes light with a dull, darker, or yellowish cuticle. The shell consists of 5½ to 8 whorls, with the spire and apex conical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |