Ogasawarana yoshiwarana
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| Ogasawarana yoshiwarana | |
|---|---|
_-_Helicinidae_-_Mollusc_shell.jpeg) | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Cycloneritida |
| Family: | Helicinidae |
| Genus: | Ogasawarana |
| Species: | O. yoshiwarana |
| Binomial name | |
| Ogasawarana yoshiwarana | |
| Synonyms | |
|
Helicina yoshiwarana Pilsbry, 1902[2] | |
Ogasawarana yoshiwarana is a species of land snail with an operculum, a terrestrial gastropod mollusk in the family Helicinidae, the helicinids.
Ogasawarana yoshiwarana was originally described under the name Helicina yoshiwarana by American malacologist Henry Augustus Pilsbry in 1902.[2]
Pilsbry's original text (the type description) appeared in the key and it reads as follows:
Periphery more or less angular, or rounded though compressed. Surface delicately striate spirally. Alt. 3.5, diam. 5.3 to 5.8 mm.
Pilsbry also distinguished two variants:
Distribution
This species was endemic to Haha-jima in the Ogasawara Islands (Japan).
Habitat
Ogasawarana yoshiwarana has been recorded living (as recently as 2006) [3] on Higashizaki peninsula off the eastern coast of Hahajima, the second largest island in the Ogasawara Archipelago/Bonin Islands system. The Bonin Islands have been sometimes referred to as the Galapagos Islands of the Orient, due to their highly diverse fauna and flora.[4] The island is small and only partly covered by forest, which is where this terrestrial gastropod lives.
Ecological role
This animal is essentially an herbivore, eating leaves, stems, soft bark, fruit, vegetables, fungi and algae. Its behavior is like that of any other land snail: it thrives in damp and wet weather. This is especially true of the ogasawarana yoshiwarana because it lives in a subtropical/tropical environment. Predators of the species include predatory snails, ground beetles, leeches, and parasites.