|
Seguenzia
''Seguenzia'' is a genus of sea snails, marine gastropod mollusks in the family Seguenziidae. This genus was named after Giuseppe Seguenza (1833-1889), the palaeontologist at Messina, Italy. Description The thin shell has a turbinate or subtrochoid shape. It is translucent, the outer layer very slight, somewhat nacreous in fresh specimens. There is no epidermis. The shell contains spiral carinations. The upper part of the body whorl is deeply and widely grooved. The aperture is irregular and sinuous behind. The columella is twisted and abruptly notched below. It has a small tooth-like process. The base of the shell shows a sinus. It is deeply umbilicated or imperforate. The thin operculum is oval, with a subcentral nucleus and with obsolete, numerous concentric lines. Species According to the World Register of Marine Species (WoRMS), the following species with valid name are included within the genus ''Seguenzia'' : *'' Seguenzia antarctica'' Thiele, 1925 *'' Seguenzia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seguenzia Cervola
''Seguenzia cervola'' is a species of extremely small deep-water sea snail, a marine (ocean), marine gastropod mollusk in the family (biology), family Seguenziidae.Rosenberg, G. (2013). ''Seguenzia cervola'' Dall, 1919. Retrieved through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=492451 on 2013-06-10 Description (Original description by W.H. Dall) The height of the shell attains 4.5 mm. The white shell is small and slightly depressed. It has one small, smooth nuclear Whorl (mollusc), whorl and five subsequent whorls. These are flattened a little in front of a distinct Suture (anatomy), suture. They are separated by a somewhat convex smooth fasciole from a thread-like keel above the periphery. In front of this is a wide, smooth interval. On the base of the shell are about a dozen spiral threads with wider interspaces, and very faint microscopic spiral striae are visible in all the interspaces under a lens. On the upper whorls, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seguenzia Chariessa
''Seguenzia chariessa'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.WoRMS (2013). ''Seguenzia chariessa'' Marshall, 1991. Retrieved through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=492378 on 2013-06-10Intergovernmental Oceanographic Commission (IOC) of UNESCO. The Ocean Biogeographic Information System (OBIS) Distribution This marine species occurs off New Caledonia ) , anthem = "" , image_map = New Caledonia on the globe (small islands magnified) (Polynesia centered).svg , map_alt = Location of New Caledonia , map_caption = Location of New Caledonia , mapsize = 290px , subdivision_type = Sovereign st .... References External links Marshall, B. A. (1991). Mollusca Gastropoda: Seguenziidae from New Caledonia and the Loyalty Islands. In A. Crosnier & P. Bouchet (Eds) Résultats des campagnes Musorstom, vol. 7. Mémoires du Muséum National d'Histoire ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seguenzia Costulifera
''Seguenzia costulifera'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.WoRMS (2013). ''Seguenzia costulifera''. Retrieved through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=492447 on 2013-06-10 Description (Original description by M. Schepman) The height of the yellowish white shell attains 5 mm. The rather small shell has a conoidal shape, with a high spire and convex base. It is scalar and rimate. It contains about 7 whorls of which the upper one forms the smooth, bulbous nucleus, followed by 2 whorls, which have a strong median keel and traces of a third one below the suture. These lirations become more conspicuous on the lower whorls, which have the median keel, another one just below the suture and in some parts traces of a third one, running entirely or partly in the deep suture. Moreover, the whole shell is covered with microscopic, close-set, spiral ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seguenzia Elegans
''Seguenzia elegans'' is a species of sea snail, a marine gastropod mollusk in the family Seguenziidae. Description The size of the shell varies between 3 mm and 4.3 mm. The base is perforated or umbilicated. The fissure of the outer lip is close to the suture. The columella is produced below. The aperture is broadly truncately sinuous on the base. Distribution This species occurs in the Atlantic Ocean off the Bay of Biscay, Madeira, Bermuda; also off Brazil and Argentine Argentines (mistakenly translated Argentineans in the past; in Spanish (masculine) or (feminine)) are people identified with the country of Argentina. This connection may be residential, legal, historical or cultural. For most Argentines, s .... References * Jensen, R. H. (1997). A Checklist and Bibliography of the Marine Molluscs of Bermuda. Unp. , 547 pp * Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). ''European register of marin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seguenzia Emmeles
''Seguenzia emmeles'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae Seguenziidae is a family of very small deepwater sea snails, marine gastropod mollusks in the superfamily Seguenzioidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).Bouchet, P. (2012). Seguenziidae. Accessed through ....Marshall, B. (2013). ''Seguenzia emmeles'' B.A. Marshall, 1991. Retrieved through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=492371 on 2013-06-10Intergovernmental Oceanographic Commission (IOC) of UNESCO. The Ocean Biogeographic Information System (OBIS) Description The length of the shell attains 3.55 mm. Distribution This marine species occurs on the Norfolk Ridge, off New Caledonia. References * Marshall B.A. (1991).'' Mollusca Gastropoda : Seguenziidae from New Caledonia and the Loyalty Islands. In A. Crosnier & P. Bouchet (Eds) Résultats de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seguenzia Balicasagensis
''Seguenzia balicasagensis'' is a species of sea snail, a marine gastropod mollusk in the family Seguenziidae Seguenziidae is a family of very small deepwater sea snails, marine gastropod mollusks in the superfamily Seguenzioidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).Bouchet, P. (2012). Seguenziidae. Accessed through .... Description The height of the shell attains 2.5 mm. Distribution This marine species occurs off the Philippines. References * Poppe G.T., Tagaro S.P. & Dekker H. (2006) ''The Seguenziidae, Chilodontidae, Trochidae, Calliostomatidae and Solariellidae of the Philippine Islands.'' Visaya Supplement 2: 1–228. page(s): 24 External links * balicasagensis Gastropods described in 2006 Molluscs of the Philippines {{Seguenziidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seguenzia Eidalima
''Seguenzia eidalima'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.Marshall, B. (2013). ''Seguenzia eidalima'' B.A. Marshall, 1991. Retrieved through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=492376 on 2013-06-10Intergovernmental Oceanographic Commission (IOC) of UNESCO. The Ocean Biogeographic Information System (OBIS) Description The length of the shell attains 31 mm. Distribution This marine species occurs off New Caledonia ) , anthem = "" , image_map = New Caledonia on the globe (small islands magnified) (Polynesia centered).svg , map_alt = Location of New Caledonia , map_caption = Location of New Caledonia , mapsize = 290px , subdivision_type = Sovereign st .... References External links Marshall, B. A. (1991). Mollusca Gastropoda: Seguenziidae from New Caledonia and the Loyalty Islands. In A. Crosnier & P. Bouchet (Eds) Résultats des campagne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seguenzia Dautzenbergi
''Seguenzia dautzenbergi'' is a species of extremely small deep water sea snail, a marine gastropod mollusk in the family Seguenziidae.WoRMS (2013). ''Seguenzia dautzenbergi'' Schepman, 1909. Retrieved through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=492448 on 2013-06-10 Description (Original description by M. Schepman) The height of this whitish-yellow shell attains 4¼ mm. The rather small, umbilicate shell has a spire forming a short gradated cone. The shell contains 7 whorls of which the uppermost forms the smooth nucleus, followed by about 2 whorls with a submedian keel and displaying a cancellated appearance by the intercrossing of subequal spiral and radiating riblets. The other whorls have each 3 spirals, of which the uppermost runs at a little distance from the suture. The next one is the strongest. It renders the whorls carinate about halfway, and a third which seems to run just in the rather conspicuous suture. M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seguenzia Dabfari
''Seguenzia dabfari'' is a species of sea snail, a marine gastropod mollusk in the family Seguenziidae Seguenziidae is a family of very small deepwater sea snails, marine gastropod mollusks in the superfamily Seguenzioidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).Bouchet, P. (2012). Seguenziidae. Accessed through .... Description The size of the shell varies between 2 mm and 3 mm. Distribution This marine species occurs off the Philippines. References External links * dabfari Gastropods described in 2006 {{Seguenziidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seguenzia Beloni
''Seguenzia beloni'' is a species of sea snail, a marine gastropod mollusk in the family Seguenziidae Seguenziidae is a family of very small deepwater sea snails, marine gastropod mollusks in the superfamily Seguenzioidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).Bouchet, P. (2012). Seguenziidae. Accessed through .... Description The height of the shell attains 2.5 mm. Distribution This marine species occurs off the Philippines. References External links * beloni Gastropods described in 2006 {{Seguenziidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seguenzia Elegantissima
''Seguenzia elegantissima'' is a species of sea snail, a marine gastropod mollusk in the family Seguenziidae Seguenziidae is a family of very small deepwater sea snails, marine gastropod mollusks in the superfamily Seguenzioidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).Bouchet, P. (2012). Seguenziidae. Accessed through .... Description The size of the shell varies between 2 mm and 3 mm. Distribution This marine species occurs off the Philippines. References External links * elegantissima Gastropods described in 2006 {{Seguenziidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seguenzia Antarctica
''Seguenzia antarctica'' is a species of sea snail, a marine gastropod mollusk in the family Seguenziidae Seguenziidae is a family of very small deepwater sea snails, marine gastropod mollusks in the superfamily Seguenzioidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).Bouchet, P. (2012). Seguenziidae. Accessed through .... Description The height of the shell attains . Distribution This species occurs in the Weddell Sea, Antarctica. References * Engl W. (2012) ''Shells of Antarctica''. Hackenheim: Conchbooks. 402 pp. antarctica Gastropods described in 1925 {{Seguenziidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |