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Angustassiminea andrewsiana
	Shell of Angustassiminea andrewsiana (holotype)
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Littorinimorpha
Family:	Assimineidae
Genus:	Angustassiminea
Species:	A. andrewsiana
Binomial name
	Angustassiminea andrewsiana; (E. A. Smith, 1900)
Synonyms
	List Assiminea andrewsianaE. A. Smith, 1900 (original combination); Paludinella andrewsiana(E. A. Smith, 1900) superseded combination;

Angustassiminea andrewsiana

Last updated December 05, 2025

Angustassiminea andrewsiana is a species of small operculate snail, a terrestrial gastropod mollusk or micromollusk in the family Assimineidae. ^[1]

Description

The length of the shell attains 4 mm, its diameter 2½ mm.

(Original description in Latin) The elongated shell is conical, and imperforate (lacking an umbilicus). It is reddish-horny in color and scarcely translucent. The surface of the shell is smooth and shining. The shell has seven rather convex whorls, which increase slowly. The whorls are margined below the suture by a pellucid line. The Body whorll is short and rounded. The aperture is oblique, inversely ear-shaped, and nearly equals 1/2 of the total length. The peristome (margin) has margins that are joined by a thin callus. The outer lip is acute and thin, while the inner lip is strongly thickened and reflected. ^[2]

Distribution

Angustassiminea andrewsiana has been found on Christmas Island

References

1 2 Angustassiminea andrewsiana (E. A. Smith, 1900) . 4 December 2025. Retrieved through: World Register of Marine Species .
↑ Smith, E. A. (1900). Mollusca. In: Andrews, C. W. (Ed.), A monograph of Christmas Island (Indian Ocean): Physical features and geology, with descriptions of the fauna and flora by numerous contributors. pp. 54-59 This article incorporates text from this source, which is in the public domain .

External links

Hallan A. & Fukuda H. (2015). "Taiwanassiminea phantasma n. sp.: a terrestrial assimineid (Caenogastropoda: Truncatelloidea) from Middle Osborn Island, Kimberley,Western Australia". Molluscan Research.

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[MolluscaBase-1] 1 2 Angustassiminea andrewsiana (E. A. Smith, 1900) . 4 December 2025. Retrieved through: World Register of Marine Species .

[2] Smith, E. A. (1900). Mollusca. In: Andrews, C. W. (Ed.), A monograph of Christmas Island (Indian Ocean): Physical features and geology, with descriptions of the fauna and flora by numerous contributors. pp. 54-59 This article incorporates text from this source, which is in the public domain .

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Angustassiminea andrewsiana

Shell of Angustassiminea andrewsiana (holotype)
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Littorinimorpha
Family:	Assimineidae
Genus:	Angustassiminea
Species:	A. andrewsiana
Binomial name
*Angustassiminea andrewsiana* (E. A. Smith, 1900)
Synonyms ^[1]
List Assiminea andrewsianaE. A. Smith, 1900 (original combination) Paludinella andrewsiana(E. A. Smith, 1900) superseded combination