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Hyalocylis
''Hyalocylis'' is a genus of gastropods belonging to the family Hyalocylidae. The genus has almost cosmopolitan distribution In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in appropriate habitats. Such a taxon, usually a species, is said to exhibit cosmopolitanism or cosmopolitism. The ext .... Species There are two recognized species: *'' Hyalocylis marginata'' *'' Hyalocylis striata'' References Cavolinioidea Gastropod genera {{Heterobranchia-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyalocylis Striata
''Hyalocylis striata'' is a species of ''Hyalocylis'', a pteropod. It is a gastropod mollusk.MolluscaBase eds. (2023). MolluscaBase. Hyalocylis striata (Rang, 1828). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=139047 on 2023-11-19 Distribution This marine species is circumtropical and is commonly found in deep waters Etymology Hyalocylis, from Ancient Greek Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic p ... “υαλινος”, “of crystal or glass”. Striata, because of the numerous and regular grooves of the shell that indicate its successive enlargements. References * Di Geronimo I. (1974). Hyalocylis obtusa n. sp. (Pteropoda, Thecosomata) in sedimenti abissali recenti dello Jonio. Conchiglie 10 (5 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyalocylis Marginata
''Hyalocylis'' is a genus of gastropods belonging to the family Hyalocylidae. The genus has almost cosmopolitan distribution. Species There are two recognized species: *'' Hyalocylis marginata'' *''Hyalocylis striata ''Hyalocylis striata'' is a species of ''Hyalocylis'', a pteropod. It is a gastropod mollusk.MolluscaBase eds. (2023). MolluscaBase. Hyalocylis striata (Rang, 1828). Accessed through: World Register of Marine Species at: https://www.marinespeci ...'' References Cavolinioidea Gastropod genera {{Heterobranchia-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyalocylidae
The family Hyalocylidae is a taxonomic group of small floating sea snails, pelagic marine opisthobranch gastropod mollusk Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is e ...s.MolluscaBase eds. (2021). MolluscaBase. Hyalocylidae A. W. Janssen, 2020. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=1449178 on 2021-03-11 Genera * '' Hyalocylis'' Fol, 1875 * † '' Praehyalocylis'' Korobkov, 1962 ;Synonyms: * ''Hyalocylix'' P. Fischer, 1883: synonym of ''Hyalocylis'' Fol, 1875 (unjustified emendation) References * Rang, M., 1828. Notice sur quelques mollusques nouveaux appartenant à la classe des Ptéropodes et établissement et monographie du sous-genre Creseis. Annales des Sciences Naturelles 13: 302–319, pls17-18 * va ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hermann Fol
Hermann Fol (23 July 1845, Saint-Mandé – 13 March 1892) was a Swiss zoologist and the father of modern cytology. After studying medicine and zoology with Ernst Haeckel (1834–1919) at the University of Jena where he was a pupil of François Jules Pictet de la Rive (1809–1872) and René-Édouard Claparède (1832-1871), he accompanied Haeckel on a prolonged scientific journey (1866 and 1867) around the coasts of West Africa and of the Canary Islands. On his return to Europe he undertook medical studies in Heidelberg and completed them by obtaining his diploma in 1869 in Zurich and Berlin. In 1871 he studied planktonic fauna in Villefranche-sur-Mer on the recommendation of Carl Vogt (1817–1895). In 1876, he observed the penetration of a spermatozoon into an egg becoming thus a pioneer of the microscopic studies of fertilisation and cellular division. Oscar Hertwig also observed this in the same year. In 1878, Fol obtained a post of professor at the University of Geneva. In 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropods
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. There are many thousands of species of sea snails and slugs, as well as freshwater snails, freshwater limpets, and land snails and slugs. The class Gastropoda contains a vast total of named species, second only to the insects in overall number. The fossil history of this class goes back to the Late Cambrian. , 721 families of gastropods are known, of which 245 are extinct and appear only in the fossil record, while 476 are currently extant with or without a fossil record. Gastropoda (previously known as univalves and sometimes spelled "Gasteropoda") are a major part of the phylum Mollusca, and are the most highly diversified class in the phylum, with 65,000 to 80,000 living snail and slug species. The anatomy, behavior, feedi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cosmopolitan Distribution
In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in appropriate habitats. Such a taxon, usually a species, is said to exhibit cosmopolitanism or cosmopolitism. The extreme opposite of a cosmopolitan species is an endemic one, being found only in a single geographical location. Qualification The caveat “in appropriate habitat” is used to qualify the term "cosmopolitan distribution", excluding in most instances polar regions, extreme altitudes, oceans, deserts, or small, isolated islands. For example, the housefly is highly cosmopolitan, yet is neither oceanic nor polar in its distribution. Related terms and concepts The term pandemism also is in use, but not all authors are consistent in the sense in which they use the term; some speak of pandemism mainly in referring to diseases and pandemics, and some as a term intermediate between endemism and cosmopolitanism, in effect regarding pandemism as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cavolinioidea
The superfamily Cavolinioidea is the most speciose group of sea butterflies. They belong to the suborder Euthecosomata. MolluscaBase eds. (2021). MolluscaBase. Cavolinioidea Gray, 1850 (1815). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=411903 on 2021-03-11 Sea butterflies (thecosomata) are pelagic marine gastropods, so called because they swim by flapping their wing-like parapodia. Distribution These sea butterflies are circumglobal, carried by the sea currents to all the seas of the world. Habitat Cavoliniids prefer deep waters, from 100 m up to 2,000 m. They do best in warm oceanic water. Shell description Species in this superfamily have a calcareous, bilaterally symmetrical conical or globular shell. Identification of juveniles is difficult as the juvenile shells differ greatly from adults. Life habits Towards the anterior end of the animal, two parapodia (winglike flat lobules) protrude between each ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
