The 2-2.2 mm x 2-2.2 mm shell has a characteristic semispherical shape like a bee skep basket. The shell has 6 convex whorls which increase gradually in size. The sutures are deep. The whorls are decorated with very fine, very regular, radial ribs. These ribs function as a diffraction grating, giving the yellow shell a silky appearance. The apertural margin is simple and breaks easily. There are no folds inside the aperture. The umbilicus is narrow. Juveniles are paler with weaker ribs at the lower side, and the umbilicus relatively wider.
^Jeffreys, J. G. 1830. A synopsis on the testaceous pneumonobrancheous Mollusca of Great Britain. - Transactions of the Linnean Society of London 16 (2): 323-392.
^Janus, Horst, 1965. ‘’The young specialist looks at land and freshwater molluscs’’, Burke, London
spermodea, lamellata, species, minute, european, land, snail, terrestrial, gastropod, mollusc, micromollusc, family, valloniidae, group, shells, scientific, classification, kingdom, animalia, phylum, mollusca, class, gastropoda, order, stylommatophora, family,. Spermodea lamellata is a species of minute European land snail a terrestrial gastropod mollusc or micromollusc in the family Valloniidae Spermodea lamellata A group of shells of Spermodea lamellata Scientific classification Kingdom Animalia Phylum Mollusca Class Gastropoda Order Stylommatophora Family Valloniidae Genus Spermodea Species S lamellata Binomial name Spermodea lamellataJeffreys 1830 1 Synonyms Acanthinula lamellata 2 Contents 1 Description 2 Distribution 3 Habitat 4 References 5 External linksDescription editFor terms see gastropod shell The 2 2 2 mm x 2 2 2 mm shell has a characteristic semispherical shape like a bee skep basket The shell has 6 convex whorls which increase gradually in size The sutures are deep The whorls are decorated with very fine very regular radial ribs These ribs function as a diffraction grating giving the yellow shell a silky appearance The apertural margin is simple and breaks easily There are no folds inside the aperture The umbilicus is narrow Juveniles are paler with weaker ribs at the lower side and the umbilicus relatively wider Distribution editThis species occurs in areas which include Denmark Great Britain Ireland Czech Republic Northern Germany 3 Netherlands extinct 4 Norway Poland isolated locality Portugal isolated localities in Serra de Bussaco mountains in Beira Alta and in Sintra 5 Sweden Ukraine 6 and other areasHabitat editThis minute snail lives in ancient woodland References edit Jeffreys J G 1830 A synopsis on the testaceous pneumonobrancheous Mollusca of Great Britain Transactions of the Linnean Society of London 16 2 323 392 Janus Horst 1965 The young specialist looks at land and freshwater molluscs Burke London MollBase Retrieved 2007 06 20 1 ANEMOON AnimalBase Spermodea lamellata species homepage Balashov I amp Gural Sverlova N 2012 An annotated checklist of the terrestrial molluscs of Ukraine Journal of Conchology 41 1 91 109 External links edit nbsp Wikimedia Commons has media related to Spermodea lamellata Spermodea lamellata at Animalbase taxonomy short description distribution biology status threats images This Valloniidae related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Spermodea lamellata amp oldid 1192143867, wikipedia, wiki, book, books, library,
