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Ethalia
''Ethalia'' is a genus of sea snails, marine (ocean), marine gastropod mollusks in the subfamily Umboniinae of the family (biology), family Trochidae, the top snails. Description The species are moderate-sized. The orbicular shell is turbinately depressed. The Whorl (mollusc), whorls are convex, smooth or transversely striated, the last one rounded at the periphery. They have a mottled or streaked color-pattern. The Umbilicus (mollusc), umbilicus is partly closed by a callus deposit. The Columella (gastropod), columellar Lip (gastropod), lip ends anteriorly in an obtuse dilated callus. The callus emitted at the columellar-parietal angle of the aperture is tongue-shaped, closing the umbilicus except a rather narrow chink, or even entirely, in some species. Distribution This marine genus occurs in the Central and East Indian Ocean, off East Africa, off Indo-Malaysia, and off Australia. Species Species within the genus ''Ethalia'' include: * ''Ethalia bellardii'' (Issel, 1869) * ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethalia Guamensis
''Ethalia guamensis'', common name the Guam button top shell, is a species of sea snail, a marine (ocean), marine gastropod mollusk in the family (biology), family Trochidae, the top snails.Bouchet, P. (2012). ''Ethalia guamensis'' (Quoy & Gaimard, 1834). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=547307 on 2012-11-23 The subspecies ''Ethalia guamensis selenomphala'' Pilsbry, 1905 is a taxon inquirendum. Description The length of the shell varies between 10 mm and 25 mm. The depressed, polished shell is perforate, solid, strong, and smooth. Its color is whitish, mottled and lineolate above with brown, reddish, fawn-color or purplish, with 4 narrow spiral articulated lines, sometimes scarcely visible because of the variegated coloration. The color of the base is lighter. There are six Whorl (mollusc), whorls, convex, the last one rounded and convex beneath. The Suture (anatomy), suture is impressed. The A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethalia Catharinae
''Ethalia catharinae'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The size of the shell attains 16 mm. Distribution This marine species occurs off the Philippines The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republ .... References External links * catharinae Gastropods described in 2006 {{Trochidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethalia Striolata
''Ethalia striolata'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.WoRMS (2012). ''Ethalia striolata'' (A. Adams, 1855). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=572119 on 2012-11-23 Description The subglobulose, subperforate shell has a discoidal shape and is transversely striate. The five whorls are slightly convex. They are ornamented with very narrow transverse, white articulated lines. The base of the shell is smooth, reddish-brown maculated at the periphery, with a reddish zone around the umbilical region. The callus is white, small, partly concealing the umbilicus. The aperture is oval. Distribution This marine species occurs in the Red Sea, off Mozambique, East Africa, Central and East Indian Ocean, Indo-Malaysia, Indonesia, Cocos Keeling Islands. and off Borneo. References * Adams, A. 1855. ''A monograph of Umbonium (Rotella), a genus of Trochidae''. P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethalia Carneolata
''Ethalia carneolata'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Bouchet, P. (2012). ''Ethalia carneolata'' Melvill, 1897. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=567713 on 2012-11-23 Description The height of the shell attains 4 mm, its diameter 7 mm. The smooth, little shell has a depressedly conical shape. It has a profound but narrow umbilicus. The shell contains 5 to 6 whorls that increase rapidly in size. They are separated by impressed sutures. The apex is minute. The body whorl is obtuse-angulate at the periphery. The aperture is round. The columellar margin contains a callus. The colour of the shell is a pale carnation or flesh-colour in hue. Inside the aperture there is a deeper shade of the same colour, painted with fillets spirally or ochre-brown beaded with white. Distribution This marine species occurs off Mozambique and South Africa. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethalia Bellardii
''Ethalia bellardii'' is a species of sea snail with a top-shaped shell, a marine gastropod mollusk in the family Trochidae, the top snails. Description The minute, thin shell has a height of only 2 mm. Its shape is orbicular-depressed, oblique, narrowly umbilicate, transversely minutely costulate. It has a pale rose-color, tessellated with purple. The spire is obtuse. The 4½ whorls are rapidly widening, slightly convex, and planulate at the sutures. They are separated by impressed sutures. The body whorl is large and rounded on the base. 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 dilated, ovate-trigonal. The peristome is simple and acute. Distribution This species occurs in the Red Sea off Suez. References External links * {{DEFAULTSORT:Et ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethalia Sanguinea
''Ethalia sanguinea'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top-snails.Bouchet, P. (2014). Ethalia sanguinea Pilsbry, 1905. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=732103 on 2014-06-30 Description A typical shell has a height of 10 mm and a diameter of 15 mm. The imperforate shell has a low-conoidal shape above, but is convex beneath. It is glossy and smooth except for fine growth lines and almost obsolete spirals. Its color is white, copiously marbled with purple-brown and pinkish above, with some opaque white spots, and a few indistinct articulated spiral lines. The base is white, with a pink central area. The 5½ whorls are convex. The body whorl is wide and narrowly rounded at the periphery. The ovate aperture is oblique. The lip is thin and simple, callused near the columellar insertion. The umbilicus is wholly filled by a red callous pad, roughened by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethalia Minolina
''Ethalia minolina'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Bouchet, P. (2012). ''Ethalia minolina'' Melvill, 1897. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=701810 on 2012-11-23 The epithet ''minolina'' was given because of the resemblance with the genus '' Minolia''. M.M. Scheprman has described a variety ''Ethalia minolia'' var. ''infralaevior'' from Indonesian waters. Description The height of the shell attains 6 mm, its diameter 10 mm. The pretty bright shell has a depressedly conical shape. It contains six whorls of rufous-flesh colour. They are uniformly very closely striate with threads with a pattern of banded filleting of white and fawn colour. The deep umbilicus is partly covered by the tongue-shaped callus extending from the columellar margin. The body whorl The body whorl is part of the morphology of the shell in those gastropo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethalia Gilchristae
''Ethalia gilchristae'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.WoRMS (2012). ''Ethalia gilchristae'' Herbert, 1992. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=567712 on 2012-11-23 Distribution This marine species occurs off South Africa South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countri .... References External links World Register of Marine Species gilchristae Gastropods described in 1992 {{Trochidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethalia Polita
''Ethalia polita'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Bouchet, P. (2014). Ethalia polita A. Adams, 1862. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=732108 on 2014-06-29 Description The white, solid, semi-opaque shell has an orbiculate-conoidal shape. The whorls are almost conical and the base is convex containing a large callus. The whorls are obsoletely transversely striated. The round aperture has a continuous peristome. Distribution This marine species occurs off Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north .... References External links To World Register of Marine Species{{Taxonbar, from=Q17332475 polita Gastropods described in 1862 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethalia Omphalotropis
''Ethalia omphalotropis'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Bouchet, P. (2014). Ethalia omphalotropis A. Adams, 1863. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=732107 on 2014-06-29 Description The small, semi-transparent shell has an ovate-discoidal shape. Its colour is white and entirely devoid of coloured markings. The 3½ convex whorls increase rapidly in size with deeply marked sutures. The body whorl has a spherical periphery. This species has a peculiar sharp keel surrounding the umbilicus. The aperture has an almost circular shape. Distribution This marine species occurs off Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north .... References * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethalia Nitida
''Ethalia nitida'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Bouchet, P. (2014). Ethalia nitida. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=732106 on 2014-06-29 Description The shell of this species is thin and helicoid, with smooth and polished whorls. The inner lip is callous and indented, but the callus is not sufficiently large to cover or conceal the umbilicus. The peristome is produced into an angle, which ascends on the body whorl. Distribution This marine species occurs off Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north .... References * Higo, S., Callomon, P. & Goto, Y. (1999) ''Catalogue and Bibliography of the Marine Shell-Bearing Mollusca of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethalia Rufula
''Ethalia rufula'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Bouchet, P. (2014). Ethalia rufula Gould, 1861. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=732105 on 2014-06-30 Description The height of the shell attains 4 mm, its diameter 6 mm. The small, polished shell has a lenticular shape. It shows almost square bright spots at the periphery and near the suture, and also red angular lines. The shell contains six slightly convex whorls with deep sutures. The base of the shell is reticulated rust-colored. The broad umbilicus has a colored margin. The aperture has an angular shape. The columellar callus is thin. Distribution This marine species occurs off Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
