Partulina induta kaaeana
| Partulina induta kaaeana | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Stylommatophora |
| Family: | Achatinellidae |
| Genus: | Partulina |
| Species: | |
| Subspecies: | P. i. kaaeana |
| Trinomial name | |
| Partulina induta kaaeana Baldwin, 1906 | |
| Synonyms | |
| |
Partulina induta kaaeana is a species of tropical air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Achatinellidae. [3]
Description
The shell measures 21 mm in length and 13 mm in diameter.
(Original description) The shell is sinistral, solid, and subperforated, possessing a globose form topped by a conical spire and a subacute apex. Its surface is rather lusterless and covered with coarse, wavy growth lines; however, under a lens, it reveals close and delicate decussating spiral lines, with the protoconch whorls being only faintly decussated. The coloration is an ashy brown, featuring a light brown band that sits just below the periphery and extends into the aperture. The entire surface is further embellished with minute longitudinal white flecks or streaks, while the apex is tessellated in white and brown.
There are six whorls, which are flatly convex and not margined above, separated by a lightly impressed suture. The aperture is a little oblique and oval in shape, possessing a livid-white interior that allows the outside coloring to show through. The peristome is acute, slightly thickened within, and expanded; its columellar margin is reflexed and displays a light brown tint on both the face and the reverse. The white columella terminates in a strong, projecting tooth that is prominently plaited.
When the animal is in motion, its extended body is longer than its shell. The mantle is brownish-black, with its outer edge bordered by a narrow white line. The foot is a light slate color both below and on the sides, while the upper portion of the head and the tentacles are a dark, granulated slate. [4]
Distribution
This species is endemic to Maui Island, Hawaii. It is found at an altitude of 4,000 feet on Mt. Helu in West Maui. It is one of the rarest animal species in the world, as it is believed to be extinct in the wild, and there are only 3 individuals in captivity. [5]
References
- ↑ Seddon, M.B. (1996). "Partulina kaaeana". IUCN Red List of Threatened Species. 1996 e.T16359A5620069. doi:10.2305/IUCN.UK.1996.RLTS.T16359A5620069.en. Retrieved 15 November 2021.
- ↑ NatureServe. "Partulina kaaeana". NatureServe Explorer. Arlington, Virginia. Retrieved 30 April 2026.
- ↑ Partulina induta kaaeana D. D. Baldwin, 1906. 28 April 2026. Retrieved through: World Register of Marine Species.
- ↑ Baldwin, D.D. (1906). "Description of new species of Achatinellidae from the Hawaiian Islands". The Nautilus. 19 (10): 113. Retrieved 28 April 2026.
This article incorporates text from this source, which is in the public domain. - ↑ Sartore, Joel. "VINV003-025". Photo Ark. Retrieved August 28, 2025.
- Severns M. (2011). Shells of the Hawaiian Islands -- The land shells. Addendum 5: A reevaluation of the taxonomic status of eight taxa of tree snails of the endemic Hawaiian genus Partulina (s.s.) from West Maui. 437-443, pls 1-3. ConchBooks