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Liotella
''Liotella'' is a genus of minute sea snails or micromolluscs, Marine (ocean), marine gastropod molluscs in the family (biology), family Skeneidae.Rosenberg, G.; Bouchet, P. (2012). Liotella Iredale, 1915. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=196947 on 2012-09-11 Description The shells lack a thickened Peristome (gastropod), peristome. The shell is depressed. In some species the shell is coiled nearly into one plane, in others it is somewhat more elevated. The Whorl (mollusc), whorls are loosely coiled. The Operculum (gastropod), operculum is multispiral with a central nucleus. The Sculpture (mollusc), sculpture shows strong transverse ribs. The spiral sculpture consists of fine lirae between the ribs or is sometimes almost or entirely obsolete. Species Species within the genus ''Liotella'' include: * ''Liotella annulata'' (Tenison Woods, 1874) * ''Liotella anxia'' (Hedley, 1909) * ''Liotella aupouria'' Arthu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liotella Elegans Darwinensis
''Liotella'' is a genus of minute sea snails or micromolluscs, marine gastropod molluscs in the family Skeneidae.Rosenberg, G.; Bouchet, P. (2012). Liotella Iredale, 1915. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=196947 on 2012-09-11 Description The shells lack a thickened peristome. The shell is depressed. In some species the shell is coiled nearly into one plane, in others it is somewhat more elevated. The whorls are loosely coiled. The operculum is multispiral with a central nucleus. The sculpture shows strong transverse ribs. The spiral sculpture consists of fine lirae between the ribs or is sometimes almost or entirely obsolete. Species Species within the genus ''Liotella'' include: * '' Liotella annulata'' (Tenison Woods, 1874) * '' Liotella anxia'' (Hedley, 1909) * '' Liotella aupouria'' Powell, 1937 * '' Liotella cancellata'' (Krauss, 1848) * '' Liotella capitata'' (Hedley, 1907) * '' Liotella compacta' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liotella Kilcundae
''Liotella kilcundae'' is a species of minute sea snail, a marine gastropod mollusc in the family Skeneidae.Marshall, B. (2013). Liotella kilcundae (Gatliff & Gabriel, 1914). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=720333 on 2013-10-28 Description The height of the shell attains 0.25mm, its diameter 1.25 mm. The very minute, white, hyaline shell consists of four whorls, including the smooth, globular protoconch. It has a discoidal shape with a sunken spire and is widely umbilicated. It is ornamented with transverse riblets. On the body whorl they number about 27. They are irregularly spaced, becoming more crowded towards the aperture. The intervening spaces are traversed by very fine, encircling incised lines. The aperture is circular. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liotella Petalifera
''Liotella petalifera'' is a species of sea snail, a marine gastropod mollusk in the family Skeneidae.Marshall, B. (2013). Liotella petalifera (Hedley & May, 1908). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=720334 on 2013-10-27 Description (Original description by Hedley & May) The height of the shell attains 0.6 mm, its diameter 1.2 mm. The minute, white shell has a subdiscoidal shape. Its spire is very little elevated. The base of the shell is broadly and deeply umbilicate. The shell contains 4 whorls, of which two constitute the protoconch, the last descending, and in slight contact with its predecessor. The protoconch is smooth, helicoid, and sharply defined. The sculpture of the shell shows in the body whorl twenty-four, in the penultimate whorl nineteen, elevated curled and forwardly-directed lamellae, whose broad summits nearly equal their interstices. The lamellae are smooth and glossy, but the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liotella Johnstoni
''Liotella johnstoni'' is a species of minute sea snail, a marine gastropod mollusc in the family Skeneidae.Marshall, B. (2013). Liotella johnstoni (Beddome, 1883). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=720332 on 2013-10-27 Description The diameter of the shell attains 1.3 mm. Distribution This marine species is endemic to Australia and occurs off New South Wales, Victoria, South Australia and Tasmania ) , nickname = , image_map = Tasmania in Australia.svg , map_caption = Location of Tasmania in AustraliaCoordinates: , subdivision_type = Country , subdi .... References * Beddome, C.E. 1882. ''Description of some marine shells of Tasmania''. Pap. Proc. R. Soc. Tas. Vol. 1882 pp. 167–170 * Laseron, C. 1954. ''Revision of the Liotiidae of New South Wales''. Aust. Zool. Vol. 12 (1) pp. 1–25, figs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liotella Annulata
''Liotella annulata'' is a species of minute sea snail, a marine gastropod mollusc in the family Skeneidae.Marshall, B. (2013). Liotella annulata (Tenison Woods, 1874). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=720329 on 2013-10-25 Description The diameter of the shell is 1.5 mm. The opaque white shell has a planorbiform shape. It is flattened above, rounded below, with somewhat distant longitudinal lamellae, above and below. Otherwise it is smooth. The umbilicus is wide. One of the ring-like lamellae forms the peristome. (described as ''Liotia annulata'') Distribution This marine species is |
Liotella Cancellata
''Liotella cancellata'' is a species of sea snail, a marine gastropod mollusk in the family Skeneidae.WoRMS (2012). ''Liotella cancellata'' (Krauss, 1848). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=572136 on 2012-09-01 Description (Original description by Ferdinand Krauss) The umbilicate shell has an orbicular shape. It is convex, solid, gray-whitish with dirty red stripes. The transverse ribs are blunt. The irregular, longitudinal striae are slender. The curve of the penultimate whorl is canceled. The shell has a prominent spire, acute at the apex;. The four whorls increase in size The body whorl has 26-28 ribs, of which 8-10 are larger, the penultimate whorl only 8, including 3 - 4 larger. These form a lattice with numerous, oblique, longitudinal threads. These are more prominent above but closer to the aperture they become weaker. The oblique aperture is small and almost rounded. The margin of the columel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liotella Corona
''Liotella corona'' is a species of minute sea snail, a marine gastropod mollusc in the family Skeneidae.Marshall, B. (2013). Liotella corona (Hedley, 1902). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=720331 on 2013-10-25 Description The height of the white shell attains 0.28 mm, its diameter 0.82 mm. The minute shell has a discoid shape. It is not nacreous. The spire is sunken. The umbilicus is wide and shallow. The shell consists of three whorls. The last half-whorl comes scarcely in contact with the others, and is suddenly and deeply deflected. Sculpture: The body whorl is ringed by 16 thick, projecting, distant ribs which fade above and below at the sutures. These ribs continue on the suture for about half a whorl. The interstices of the ribs are faintly spirally scratched. The very oblique aperture is circular and fortified by a varix. Distribution This marine species is endemic Endemism is t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liotella Anxia
''Liotella anxia'' is a species of minute sea snail, a marine gastropod mollusc in the family Skeneidae.Marshall, B. (2013). Liotella anxia (Hedley, 1909). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=719444 on 2013-10-25 Description (Original description by Ch. Hedley) The height of the shell attains 0.7 mm, its diameter 1.1 mm. The minute, depressed, pale buff shell has a turbinate shape and is widely umbilicate. The three whorls increase rapidly in size and are loosely coiled. The final half-whorl descends and departs from the remainder. The sculpture shows fine radial threads that traverse the whole shell. There are about sixty of these on the body whorl. Their interstices are closely latticed by rather finer spirals. The simple aperture is free and circular. The broad umbilicus is deep. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liotella Crassicostata
''Liotella crassicostata'' is a species of sea snail, a marine gastropod mollusk in the family Skeneidae,.Rosenberg, G. (2012). ''Liotella crassicostata'' (Strebel, 1908). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=532971 on 2012-09-01 Description The height of the shell attains 0.8 mm, its diameter 0.8 mm. The yellowish white shell has a helicoidal shape. Its umbilicus is narrow. The shell contains 2½ whorls, slightly flattened at the periphery and then rounded. The sculpture consists, besides the lines of growth, of strong ribs (their number is shown about correctly in the image). The aperture In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture and focal length of an optical system determine the cone angle of a bundle of rays that come to a focus in the image plane. An opt ... is almost round. The columella is thickened. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liotella Capitata
''Liotella capitata'' is a species of minute sea snail, a marine gastropod mollusc in the family Skeneidae.Marshall, B. (2013). Liotella capitata (Hedley, 1907). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=719402 on 2013-10-25 Description (Original description by Ch. Hedley) The height of the shell attains 0.6 mm, its diameter 1.3 mm. The minute, cream-colored shell has a subdiscoidal shape. The spire is slightly elevate. The umbilicus is wide. The shell contains 3 whorls. The 1½ whorl of the protoconch is tilted and inflated. The body whorl comes scarcely in contact with the penultimate whorl, at last deeply descending. The sculpture of the shell shows sharp, projecting ring ribs, widely spaced on the last half whorl, but crowded on the penultimate. The interspaces and protoconch are smooth. The oblique aperture is oval and entire. It is downwardly directed and fortified by a prominent ring varix. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liotella Endeavourensis
''Liotella endeavourensis'' is a species of sea snail, a marine gastropod mollusk in the family Skeneidae The Skeneidae are a speciose family of minute to small marine gastropod molluscs in the superfamily Trochoidea.Bouchet, P.; Gofas, S. (2013). Skeneidae. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php .... Description Distribution This species occurs in Antarctic waters. References * Engl W. (2012) ''Shells of Antarctica''. Hackenheim: Conchbooks. 402 pp. External links Southern Ocean Mollusc Database (SOMBASE) endeavourensis Gastropods described in 1990 {{Trochoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liotella Compacta
''Liotella compacta'' is a species of minute sea snail, a marine gastropod mollusc in the family Skeneidae.Marshall, B. (2013). Liotella compacta (Petterd, 1884). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=720330 on 2013-10-25 Description The diameter of the shell attains 1.3 mm. Distribution This marine species is endemic to Australia and occurs off South Australia and Tasmania ) , nickname = , image_map = Tasmania in Australia.svg , map_caption = Location of Tasmania in AustraliaCoordinates: , subdivision_type = Country , subdi .... References * Petterd, W. 1884. ''Description of new Tasmanian shells''. Journal of Conchology 4: 135-145 * Cotton, B. C., 1959. ''South Australian Mollusca''. Archaeogastropoda. W.L. Hawes, Adelaide.. 449 pp., 1 pl. External links * {{Taxonbar, from=Q16969137 compacta Gastropo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |