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Punctum (gastropod)
''Punctum'' is a genus of very small air-breathing land snails, terrestrial molluscs, terrestrial pulmonate gastropod mollusks or micromollusks in the subfamily Punctinae of the family Punctidae, the dot snails.MolluscaBase eds. (2022). MolluscaBase. Punctum Morse, 1864. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=866756 on 3 March 2022 Distribution This genus is found throughout the Holarctic ecozone, and also in South Africa and Mexico. Species The genus ''Punctum'' includes the following species: The type species is ''Helix minutissima'' Lea, 1841 * ''Punctum abbadianum'' (Bourguignat, 1883) * ''Punctum adami'' Bruggen & Goethem, 2001 * † ''Punctum alveus'' Pierce, 1992 * ''Punctum amblygonum'' (Reinhardt, 1877) * ''Punctum apertum'' Pilsbry & Y. Hirase, 1904 * ''Punctum atomus'' Pilsbry & Hirase, 1904 * ''Punctum azoricum'' De Winter, 1988 [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Punctum Minutissimum
''Punctum minutissimum'' is a species of small air-breathing land snail, a terrestrial animal, terrestrial pulmonate gastropod mollusk in the family Punctidae, the dot snails. Shell description The shell of ''Punctum minutissimum'' is slightly translucent and pale brown in color. It is 1.1 to 1.3 mm wide, and has 3.5 to 4.5 whorls. The outer shell surface has a sculpture (mollusc), sculpture of radial striae, which are obvious under magnification. The underside of the shell has a very wide umbilicus (mollusc), umbilicus, almost 25% of the shell's width. Distribution This species occurs in North America, from Maine to Florida, and west to Oregon and New Mexico. Habitat This small snail lives in damp leaf litter and decaying fallen beech logs. It is often found around polypore and bolete fungi.Henry Augustus Pilsbry, Pilsbry H. A. (1948). ''Land Mollusca of North America (North of Mexico)''. The Academy of Natural Sciences of Philadelphia, Monographs, 3, vol. 2 part 2: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Punctum Amblygonum
Punctum, plural puncta, adjective punctate, is an anatomical term for a sharp point or tip. It may also refer to: Medical * Lacrimal punctum, a minute opening on the margins of the eyelids that collect tears produced by the lacrimal glands *Blind spot (vision), or ''punctum cecum'', the blind spot in human vision corresponding to the location of the optic disk * Erb's point (neurology) or ''punctum nervosum'', a nerve point in the human neck * Imperforate lacrimal punctum, a congenital disorder of dogs Unrelated species named punctum *'' Allium punctum'', a species of wild onion *'' Amyna punctum'', a moth of the family Noctuidae *'' Cinguloterebra punctum'', a sea snail of the family Terebridae *'' Phylloxiphia punctum'', a moth of the family Sphingidae *'' Sepsis punctum'', a fly of the family Sepsidae *'' Zygaena punctum'', a moth of the family Zygaenidae Other * ''Punctum'' (gastropod), a genus of land snails * Punctum delens, typographic marks used to indicate deletion ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Punctum Blandianum
''Punctum blandianum'' is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Punctidae, the dot snails. Shell description The shell of ''P. blandianum'' is between 1.1 and 1.3 mm wide. The outer shell surface has a sculpture of radial striae, which are obvious under magnification. The umbilicus is about one third the width of the shell. Distribution This species is found in the United States, in the states of Tennessee, Virginia and Alabama Alabama ( ) is a U.S. state, state in the Southeastern United States, Southeastern and Deep South, Deep Southern regions of the United States. It borders Tennessee to the north, Georgia (U.S. state), Georgia to the east, Florida and the Gu .... Habitat Population sizes of ''Punctum blandianum'' have been observed to be five times larger on highly acidic sites than on basic sites.Nekola, J. C. 2010. ''Acidophilic Terrestrial Gastropod Communities of North America'', Journal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
