Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Mollusca
Classis: Gastropoda
Subclassis: Heterobranchia
Infraclassis: Euthyneura
Cohors: Tectipleura
Subcohors: Panpulmonata
Superordo: Eupulmonata
Ordo: Stylommatophora
Subordo: Helicina
Infraordo: Pupilloidei
Superfamilia: Pupilloidea
Familia: Valloniidae
Subfamilia: Acanthinulinae
Genus: Acanthinula
Species: A. aculeata
Acanthinula aculeata is a species of minute, air-breathing land snail, a terrestrial pulmonate gastropod mollusk or micromollusk in the family Valloniidae.
Description
For terms see gastropod shell.
The 1.9-2.1 mm. shell is slightly higher than wide and brown in colour. The periostracum bears ribs ( elevated, radial ridges) with characteristic spines. The aperture is circular. The animal is grey on the dorsum and tentacles. The foot and sole margin are white.[2]
Distribution
This species is found in Bulgaria, the Czech Republic, Estonia, Poland, the Netherlands, Slovakia, Great Britain, Ireland, Ukraine[3] and elsewhere.
References
Müller O. F. (1774). Vermivm terrestrium et fluviatilium, seu animalium infusoriorum, helminthicorum, et testaceorum, non marinorum, succincta historia. Volumen alterum. pp. I-XXVI [= 1-36], 1-214, [1-10]. Havniæ & Lipsiæ. (Heineck & Faber).
Animalbase (Welter-Schultes)
Balashov I. & Gural-Sverlova N. 2012. An annotated checklist of the terrestrial molluscs of Ukraine. Journal of Conchology. 41 (1): 91-109.
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