Partulina terebra

Partulina terebra
Shell of Partulina terebra (specimen at the Natural History Museum, Rotterdam)
Critically Imperiled
Critically Imperiled (NatureServe)[2]
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Family: Achatinellidae
Genus: Partulina
Species:
P. terebra
Binomial name
Partulina terebra
(Newcomb, 1854)
Synonyms[3]
  • Achatinella terebra Newcomb, 1854
  • Partulina (Partulina) terebra (Newcomb, 1854)
  • Achatinella corusca Pilsbry & Cooke, 1912

Partulina terebra is a species of land snail in the family Achatinellidae. [3]

Subspecies
  • Partulina terebra attenuata (L. Pfeiffer, 1855)
  • Partulina terebra fusoidea (Newcomb, 1855)
  • Partulina terebra terebra (Newcomb, 1854)
  • Partulina terebra winniei D. D. Baldwin, 1908

Description

The length of the shell attains 18 mm.

(Original description) The shell is turreted and consists of six rounded whorls. The body whorl is notably inflated and distinctly margined along its upper edge. The suture is well-impressed, creating a clear definition between the segments. The aperture is shaped in an elongate-ovate fashion, leading to a outer lip that is slightly reflected and thickened within. The short columella terminates in a prominent, twisted plait that serves as a defining feature of the aperture.

The surface is textured with decussating striae, creating a fine, cross-hatched pattern. The shell is a light yellow, adorned with wave-like, brown markings that become nearly obsolete as they reach the upper whorls. In contrast to the patterned exterior, the lip, the columella, and the interior of the aperture are all a pristine white. [4]

Distribution

This species is endemic to Hawaii in the United States.[2]

References

  1. ↑ Seddon, M.B. (1996). "Partulina terebra". IUCN Red List of Threatened Species. 1996 e.T16369A5636403. doi:10.2305/IUCN.UK.1996.RLTS.T16369A5636403.en. Retrieved 1 June 2025.
  2. 1 2 NatureServe. "Partulina terebra". NatureServe Explorer. Arlington, Virginia. Retrieved 1 June 2025.
  3. 1 2 Bieler R, Bouchet P, Gofas S, Marshall B, Rosenberg G, La Perna R, Neubauer TA, Sartori AF, Schneider S, Vos C, ter Poorten JJ, Taylor J, Dijkstra H, Finn J, Bank R, Neubert E, Moretzsohn F, Faber M, Houart R, Picton B, Garcia-Alvarez O (eds.). "Partulina terebra (Newcomb, 1854)". MolluscaBase. World Register of Marine Species. Retrieved 1 June 2025.
  4. ↑ Newcomb, W (1854). "Descriptions of seventy·nine new species of Achatinella, (Swains.), a genus of pulmoniferous mollusks, in the collection of Hugh Cuming, Esq". Proceedings of the Zoological Society of London. 21: 144. Retrieved 28 April 2026. Public Domain This article incorporates text from this source, which is in the public domain.
  • Cowie, R. H., Evenhuis, N. L. & Christensen, C. C. (1995). Catalog of the native land and freshwater molluscs of the Hawaiian Islands. vi + 248 pp. Leiden: Backhuys Publishers.