Achatinella bulimoides

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Achatinella bulimoides
Achatinella bulimoides.jpg

Achatinella bulimoides

Systematics
Order : Lung snails (pulmonata)
Subordination : Land snails (Stylommatophora)
Superfamily : Achatinelloidea
Family : Achatinellidae
Genre : Achatinella
Type : Achatinella bulimoides
Scientific name
Achatinella bulimoides
Swainson , 1828
Distribution area of Achatinella bulimoides

Achatinella bulimoides is a species of snail belonging to the genus Achatinella , a group of nocturnal, viviparous tree snails thatare endemic to the Hawaiian island of Oahu .

description

Achatinella bulimoides reaches a case length of 2.1 centimeters and a case diameter of 1.2 centimeters. The housing is ovate-elongated, somewhat bulbous and right or left wound. It has up to six and a quarter turns. The seams, if at all, are slightly delimited by a slight groove. The shiny surface of the case is whitish with chestnut-colored spiral bands, the tip is pale brown. The base color can also be pale brownish with darker bands. The mouth is white.

distribution

Achatinella bulimoides lives in the Koʻolau Mountains on the Hawaiian island of Oʻahu. The species is endangered in its population. Probable causes of the decline are excessive collection by snail collectors, the stalking by introduced pigs and rats, the clearing of forests and invasive plant species such as Clidemia hirta and Dicranopteris linearis , which prevent the regrowth of the food trees that are indispensable for the snails. The introduced ant species Pheidole megacephala , the garlic gloss snail ( Oxychilus alliarius ) and the rosy wolf snail ( Euglandina rosea ) also hunt Achatinella snails.

literature

  • SM Wells, RM Pyle & NM Collins: IUCN Invertebrate Red Data Book . International Union for the Conservation of Nature and Natural Resources, 1983, ISBN 2880326028
  • Henry A. Pilsbry and C. Montague Cooke: Manual of Conchology. Structural and Systematic. Volume XXII. Achatinellidae . Conchological Department, Philadelphia, 1912-1914
  • EW Thwing, Henry A. Pilsbry, and C. Montague Cooke: Occasional papers of Bernice P. Bishop Museum (1907-1917) . Bernice P. Bishop Museum
  • US Fish and Wildlife Service (1992): Recovery Plan for the Oʻahu Tree Snails of the Genus Achatinella (PDF; 17.1 MB) . US Fish and Wildlife Service, Portland, Oregon, Article 64 pages, Appendix 64, 5 figures.

Web links