Ogasawarana yoshiwarana [SEP] IUCN conservation status
places in the world not affected by anthropogenic forces or introduced non-native species. Perhaps the hand of natural selection plays a role in the specie's threatened status.
Extinction.
"Ogasawarana yoshiwarana" is listed as critically endangered in the "IUCN Red List of Threatened Species".
Last record of this species is from 1902 by type description by Henry Augustus Pilsbry. The species is considered to be critically endangered.
References.
- This article incorporates public domain text from reference.
Ogasawarana yoshiwarana
Ogasawarana yoshiwarana is a species of land snail with an operculum, a terrestrial gastropod mollusk in the family Helicinidae, the helicinids.
Description.
"Ogasawarana yoshiwarana" was originally described under the name "Helicina yoshiwarana" by American malacologist Henry Augustus Pilsbry in 1902.
Pilsbry's original text (the type description) appeared in the key and it reads as follows:
Pilsbry also distinguished two variants:
- "H. yoshiwarana" var. "arata" - Upper surface strongly striate spirally.