Zonitoides apertus

Zonitoides apertus
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Stylommatophora
Superfamily:	Gastrodontoidea
Family:	Gastrodontidae
Genus:	Zonitoides
Species:	Z. apertus
Binomial name
Zonitoides apertus Pilsbry & Hirase, 1904
Synonyms [1]
Nesovitrea (Perpolita) apertaPilsbry & Hirase 1904

Zonitoides apertus is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Gastrodontidae. ^[2]

Description

The altitude of the shell is 2.1 mm (0.08 in), its diameter 4.7 mm (0.18 in).

(Original description) The shell is depressed and has a wide, open umbilicus. The spire is lightly convex. Its color is pale greenish corneous-brown when fresh. "Dead" shells are light brown. The glossy surface is closely, deeply and irregularly striate throughout except the first whorl which is nearly smooth. There are no spiral striae. The shell contains four whorls. These are slightly increasing at first. The body whorl is much wider, double the width of the penultimate whorl. They are rounded at the periphery. The aperture is oblique, oval-lunate, decidedly wider than high. The peristome is simple. ^[3]

Distribution

This species occurs in Japan.

References

1. ANSP Malacology collection
2. MolluscaBase eds. (2023). MolluscaBase. Zonitoides apertus Pilsbry & Hirase, 1904. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1331915 on 2023-12-06
3. Pilsbry, H. A. & Hirase, Y. (1904). Descriptions of new land shells of the Japanese Empire. Proceedings of the Academy of Natural Sciences of Philadelphia. 56: 616–638

• H. B. Baker, 1963. Proceedings of the Academy of Natural Sciences of Philadelphia 115 (8): 237
• Minato, H. (1988). A systematic and bibliographic list of the Japanese land snails. H. Minato, Shirahama, 294 pp., 7 pls.