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Bayerotrochus Masoni
''Bayerotrochus'' is a genus of sea snails, marine gastropod mollusks in the family Pleurotomariidae. The generic name ''Bayerotrochus'' is in honor of marine biologist Frederick Bayer.Cairns S. D. (2008). "Frederick M. Bayer – Commissioner 1972-1995, octocoral taxonomist and Smithsonian curator". '' Bulletin of Zoological Nomenclature'' 65(2)86-87 The shells of the snails in this genus show a selenizone. Species Species within the genus ''Bayerotrochus'' include: *''Bayerotrochus africanus'' ( Tomlin, 1948) *''Bayerotrochus boucheti'' (Anseeuw & Poppe, 2001) *''Bayerotrochus charlestonensis'' (Askew, 1988) *''Bayerotrochus diluculum'' (Okutani, 1979) *''Bayerotrochus indicus'' (Anseeuw, 1999) *''Bayerotrochus midas'' (Bayer, 1966) *''Bayerotrochus philpoppei'' Anseeuw, Poppe & Goto, 2006 *''Bayerotrochus poppei'' Anseeuw, 2003 *''Bayerotrochus pyramus'' (Bayer, 1967) *''Bayerotrochus quiquandoni'' Cossignani, 2018 *''Bayerotrochus tangaroanus'' (Bouchet & Métivier, 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operculum (gastropod)
The operculum (; ) is a corneous or calcareous anatomical structure like a trapdoor that exists in many (but not all) groups of sea snails and freshwater snails, and also in a few groups of land snails; the structure is found in some marine and freshwater gastropods, and in a minority of terrestrial gastropods, including the families Helicinidae, Cyclophoridae, Aciculidae, Maizaniidae, Pomatiidae, etc. The operculum is attached to the upper surface of the foot and in its most complete state, it serves as a sort of "trapdoor" to close the aperture of the shell when the soft parts of the animal are retracted. The shape of the operculum varies greatly from one family of gastropods to another. It is fairly often circular, or more or less oval in shape. In species where the operculum fits snugly, its outline corresponds exactly to the shape of the aperture of the shell and it serves to seal the entrance of the shell. Many families have opercula that are reduced in size, and which a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Read Le Brockton Tomlin
John Read le Brockton Tomlin (15 August 1864 – 24 December 1954) was a British malacologist. He was one of the founders of the Malacological Society of London and was president of the Conchological Society of Great Britain & Ireland on two separate occasions. Conchological Society of Great Britain & Ireland. accessed 4 October 2010. Tomlin named more than a hundred of s, including: * The family [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tokubei Kuroda
was a Japanese scientist and academic. He is best known as a pioneering taxonomist and malacologist specializing in Japanese marine and terrestrial Mollusca. Early life Kuroda was born at Fukura (now Nandan-cho in Minami-Awaji-Shi) on the island of Awaji. He graduated middle school at 15, and was recruited as a houseboy by Yoichiro Hirase, a Kyoto dealer in poultry, seeds and aviculture products who had founded a side business trading in marine and land shells. While his employment initially included cleaning Hirase's large house and looking after his children by day, Hirase paid for Kuroda to attend night school and to learn English, at which he excelled, and arranged for him to learn the basics of systematic biology. A rapid learner and diligent clerk, Kuroda was soon placed in charge of the shell business, and became Hirase's secretary. He was instrumental in the founding and operation of Hirase's Conchological Museum (1913-1919), which was situated near Kyoto Zoo, and ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bayerotrochus Teramachii
''Bayerotrochus teramachii'', is a species of sea snail, a marine gastropod mollusc in the family Pleurotomariidae. Description The shell has a depressed turbinate shape with an apical spire angle of approximately 98 degrees, with inflated body whorls that are exponential in expansion, a clearly impressed suture, and the periphery is rounded and indistinct. The base is highly inflated with a small columellar callus at the center covering roughly 22 percent of the base area. The aperture is oval, the slit is positioned roughly halfway between the periphery and the suture and is relatively long, about 21 percent of the circumference. The shell is lightly sculptured with numerous spiral cords over 30 above the selenizone (the area where the shell growth filled in the slit) and 17 to 19 spiral cords below the selenizone, crossed by strong axial growth lines which gives the effect of a coarse rectangular pattern. The cords are made up of very fine hemispherical beads. The bas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bayerotrochus Tangaroanus
''Bayerotrochus tangaroanus'', or Tangaroan slit shell, is a species of sea snail, a marine gastropod mollusc in the family Pleurotomariidae. Description The shell has a typical trochoid shape with a spire angle of approximately 90 degrees and nearly straight sided profile until the later whorls which are slightly rounded with an oblique periphery and a clearly defined suture. The base is inflated and rounded with a small columellar callus at the center covering roughly 10 percent of the base area. The aperture is oval, the slit is positioned roughly halfway between the periphery and the suture and is relatively short, about 16 percent of the circumference. The shell is lightly sculptured with fine spiral threads which are more clearly defined below the selenizone (the area where the shell growth filled in the slit) crossed by stronger axial growth lines which gives the effect of a weak rectangular pattern. The base has 38 to 40 fine spiral threads. The protoconch and pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bayerotrochus Quiquandoni
''Bayerotrochus quiquandoni'' is a species of sea snail, a marine gastropod mollusk in the family Pleurotomariidae Pleurotomariidae, common name the "slit snails", is a family of large marine gastropods in the superfamily Pleurotomarioidea of the subclass Vetigastropoda. This family is a very ancient lineage; there were numerous species in the geological pas .... References {{taxonbar, from=Q61702216 Pleurotomariidae Gastropods described in 2018 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bayerotrochus Pyramus
''Bayerotrochus pyramus'', common name the pyramus slit shell, is a species of large sea snail, a marine gastropod mollusk in the family Pleurotomariidae, the slit snails.Bouchet, P. (2012). ''Bayerotrochus pyramus'' (Bayer, 1967). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=467977 on 2013-02-16Intergovernmental Oceanographic Commission (IOC) of UNESCO. The Ocean Biogeographic Information System (OBIS) Description The shell reaches a length of 64 mm. Distribution This marine species occurs in the Lesser Antilles off Guadeloupe Guadeloupe (; ; gcf, label=Antillean Creole, Gwadloup, ) is an archipelago and overseas department and region of France in the Caribbean. It consists of six inhabited islands—Basse-Terre, Grande-Terre, Marie-Galante, La Désirade, and the ..., St Lucia and Martinique at depths between 400 m and 560 m. References External links To Encyclopedia of LifeTo World Register ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bayerotrochus Poppei
''Bayerotrochus poppei'' is a species of sea snail, a marine gastropod mollusc in the family Pleurotomariidae Pleurotomariidae, common name the "slit snails", is a family of large marine gastropods in the superfamily Pleurotomarioidea of the subclass Vetigastropoda. This family is a very ancient lineage; there were numerous species in the geological pas .... Description The length of the shell reaches 50 mm. Distribution This marine species occurs in the Pacific Ocean off Tonga. References * Anseeuw P. 2003. ''A new pleurotomariid (Gastropoda: Pleurotomariidae) from Tonga Islands, South Pacific, Bayerotrochus poppei sp. n.'' Novapex 4(1): 11–16 External links * Pleurotomariidae Gastropods described in 2003 {{Pleurotomariidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bayerotrochus Philpoppei
''Bayerotrochus philpoppei'' is a species of sea snail, a marine gastropod mollusc in the family Pleurotomariidae Pleurotomariidae, common name the "slit snails", is a family of large marine gastropods in the superfamily Pleurotomarioidea of the subclass Vetigastropoda. This family is a very ancient lineage; there were numerous species in the geological pas .... Description The length of the shell reaches 56 mm. Distribution This marine species occurs off the Philippines. References External links * Pleurotomariidae Gastropods described in 2006 {{Pleurotomariidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bayerotrochus Indicus
''Bayerotrochus indicus'' is a species of large sea snail, a marine gastropod mollusk in the family Pleurotomariidae, the slit snails.Bouchet, P. (2012). ''Bayerotrochus indicus'' (Anseeuw, 1999). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=467981 on 2013-02-16 Description The shell grows to a length of 75 mm. Distribution This species occurs in the Andaman Sea The Andaman Sea (historically also known as the Burma Sea) is a marginal sea of the northeastern Indian Ocean bounded by the coastlines of Myanmar and Thailand along the Gulf of Martaban and west side of the Malay Peninsula, and separated from .... References * Anseeuw, P., 1999. ''Perotrochus indicus a new species of pleurotomariid from India''. Gloria Maris 37(5-6): 88-95 External links To Encyclopedia of LifeTo World Register of Marine Species* MNHN, Paris: holotype Pleurotomariidae Gastropods described in 1999 {{Pleurotomari ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bayerotrochus Diluculum
''Bayerotrochus diluculum'', common name the dawn slit shell, is a species of large sea snail, a marine gastropod mollusk in the family Pleurotomariidae, the slit snails.Bouchet, P. (2012). ''Bayerotrochus diluculum'' (Okutani, 1979). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=467978 on 2013-02-16 Description, The length of the shell reaches 80 mm. Distribution This marine species occurs off central 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 Encyclopedia of LifeTo World Register of Marine Species* Pleurotomariidae Gastropods described in 1979 {{Pleurotomariidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bayerotrochus Charlestonensis
''Bayerotrochus charlestonensis'' is a species of large sea snail, a marine gastropod mollusk in the family Pleurotomariidae Pleurotomariidae, common name the "slit snails", is a family of large marine gastropods in the superfamily Pleurotomarioidea of the subclass Vetigastropoda. This family is a very ancient lineage; there were numerous species in the geological pas ..., the slit snails. Bouchet, P. (2012). ''Perotrochus charlestonensis''. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=467992 on 2013-02-16 Description The length of the shell varies between 40 mm and 87 mm. Distribution This species occurs in the Atlantic Ocean off South Carolina, USA. References External links To Biodiversity Heritage Library (1 publication)To Encyclopedia of LifeTo USNM Invertebrate Zoology Mollusca CollectionTo World Register of Marine Species* Pleurotomariidae Gastropods described in 1987 {{Ple ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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