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Gundlachia (gastropod)
''Gundlachia'' is a genus of minute freshwater snails or limpets, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails and their allies. The generic name is in honor of Cuban naturalist Juan Gundlach (1810-1896). Anatomy These animals have a pallial lung, as do all pulmonate snails, but they also have a false gill or "pseudobranch". This serves as a gill as, in their non-tidal habitat, these limpets never reach the surface for air. Distribution They have a worldwide distribution. Species Species within the genus ''Gundlachia'' include:Silvana C Thiengo, Aline C Mattos, M Fernanda Boaventura, Márcio S Loureiro, Sonia B Santos, Monica A Fernandez. (August) 2004''Freshwater Snails and Schistosomiasis Mansoni in the State of Rio de Janeiro, Brazil: V - Norte Fluminense Mesoregion'' Mem Inst Oswaldo Cruz, Vol. 99, Suppl. 1, pp. 99-103 * ''Gundlachia bakeri'' Pilsbry, 1913 * ''Gundlachia leucaspis'' (Ancey, 1901) * ''Gundlachia lucasi'' Sut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a Symmetry in biology#Bilate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropod
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, feeding, and re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ferrissia Neozelanicus
''Ferrissia neozelanica'', also known as ''Gundlachia neozelanica'', is a species of minute freshwater limpet, an aquatic pulmonate gastropod mollusk, or micromollusk, in the family Planorbidae. As of 2014, this species was listed in the IUCN Red list twice: as ''Gundlachia neozelanica'' - data deficient and as ''Ferrissia neozelanicus'' - least concern. Shell description Shell depressed conoidal, oval-oblong, the sides straightened, subparallel, thin, semitransparent, horn-colour, with a blackish-green coating. Apex a little inclined to the right, situated at the posterior sixth of the length, flatly convex anteriorly; concentric lines of growth at regular intervals. Interior light brown, shining. Aperture is elongated oval, slightly broadened anteriorly. Specimens have been found with the septum partly formed, but not adult. The shell length is up to 3 mm, the width up to 2 mm, and height up to 0.75 mm. Anatomy These animals have a pallial lung, as do all pu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gundlachia Ticaga
''Gundlachia ticaga'' is a species of minute freshwater snail or limpet, an aquatic gastropod mollusc in the family Planorbidae, the ram's horn snails and their allies. Distribution ''G. ticaga'' is endemic to Argentina, where it was recorded in Iguazú National Park in the Misiones Province, and Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ..., where it is known from the regions of Rio de Janeiro (state), Rio de Janeiro, Goiás, Rio Grande do Sul and São Paulo (state), São Paulo. Habitat and Ecology ''G. ticaga'' occurs in polluted and unpolluted streams and rivers in Brazil. It is also found in irrigation ditches. Like several other species of freshwater gastropods, it is the host of a trematode worm, ''Echinostome cercaria'', and was found to associate with the r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gundlachia Radiata
''Gundlachia radiata'' is a species of minute freshwater snail or limpet, an aquatic pulmonate gastropod mollusk or micromollusk in the family Planorbidae Planorbidae, common name the ramshorn snails or ram's horn snails, is a family of air-breathing freshwater snails, aquatic pulmonate gastropod molluscs. Unlike most molluscs, the blood of ram's horn snails contains iron-based hemoglobin ins .... Distribution The current distribution of ''G. radiata'' ranges from southern United States to northwestern Argentina.Reeves W. K., Dillon Jr. R. T. & Dasch G. A. (2008). "Freshwater snails (Mollusca: Gastropoda) from the Commonwealth of Dominica with a discussion of their roles in the transmission of parasites". ''American Malacological Bulletin'' 24: 59-63. PDF. References Planorbidae Gastropods described in 1828 Taxa named by Lansdown Guilding {{Planorbidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bryant Walker
Bryant Walker (1856–1936) was an American malacologist who specialized in the non-marine Mollusca. He mainly studied the freshwater mollusks of the USA, in particular those of Michigan. He published many papers on the Unionida, an order of freshwater mussels. Taxa Walker named numerous taxa of freshwater 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. The ... and bivalves, including: Gastropods *'' Neoplanorbis carinatus'' Walker, 1908 *†'' Neoplanorbis smithi'' Walker, 1908 Publications A partial list of his publications*Ortmann, A.E., and B. Walker 1912. A new North American naiad. Nautilus 25(9):97-100 + 1 plate. *Ortmann, A.E., and B. Walker 1922. A new genus and species of American naiades. Nautilus 36(1):1-6 + 1 plate. *Ortmann, A.E., and B. Walker. 1922. On the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Suter
Henry Suter (born Hans Heinrich Suter, 9 March 1841 – 31 July 1918) was a Swiss-born New Zealand zoologist, naturalist, palaeontologist, and malacologist. Biography Henry Suter was born on 9 March 1841 in Riesbach, Zurich, Switzerland, and was the son of a prosperous silk-manufacturer of Zurich. He was educated at the local school and university, being trained as an analytical chemist. Suter joined his father's business, and for some years he engaged in various commercial pursuits. From his boyhood, Henry Suter was deeply interested in natural history. He enjoyed the friendship and help of such men as Dr. Auguste Forel, Professor Paul Godet, the brothers de Saussure (linguist Ferdinand de Saussure, Sinolog and astronomer Léopold de Saussure and René de Saussure Esperantist and scientist), Escher von der Linth, and especially the well-known conchologist, Dr. Albert Mousson. Partly to improve his financial prospects and partly lured by the attraction of the fauna of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Augustus Pilsbry
Henry Augustus Pilsbry (7 December 1862 – 26 October 1957) was an American biologist, malacologist and carcinologist, among other areas of study. He was a dominant presence in many fields of invertebrate taxonomy for the better part of a century. For much of his career, his authority with respect to the classification of certain substantial groups of organisms was unchallenged: barnacles, chitons, North American terrestrial molluscs, terrestrial mollusks, and others. Biography Pilsbry (frequently misspelled ''Pilsbury'') spent his childhood and youth in Iowa. He was called "Harry" Pilsbry then, and developed an early fascination with the limited variety of mollusks he was able to find. He attended the University of Iowa, and received the Bachelor of Science degree there in 1882, but did not immediately find employment in his field of interest. Instead, Henry Pilsbry worked for publishing firms and newspapers for the next several years, but devoted most of his spare time to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HarperCollins
HarperCollins Publishers LLC is one of the Big Five English-language publishing companies, alongside Penguin Random House, Simon & Schuster, Hachette, and Macmillan. The company is headquartered in New York City and is a subsidiary of News Corp. The name is a combination of several publishing firm names: Harper & Row, an American publishing company acquired in 1987—whose own name was the result of an earlier merger of Harper & Brothers (founded in 1817) and Row, Peterson & Company—together with Scottish publishing company William Collins, Sons (founded in 1819), acquired in 1989. The worldwide CEO of HarperCollins is Brian Murray. HarperCollins has publishing groups in the United States, Canada, the United Kingdom, Australia, New Zealand, Brazil, India, and China. The company publishes many different imprints, both former independent publishing houses and new imprints. History Collins Harper Mergers and acquisitions Collins was bought by Rupert Murdoch's News Corpora ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthur William Baden Powell
Arthur William Baden Powell (4 April 1901 – 1 July 1987) was a New Zealand malacologist, naturalist and palaeontologist, a major influence in the study and classification of New Zealand molluscs through much of the 20th century. He was known to his friends and family by his third name, "Baden". Biography Early life The name Baden had been a given name in a Powell family since 1731, when Susannah Powell née Thistlethwayte (1696–1762) gave to her child (1731–1792) the maiden name of her mother, Susannah Baden (1663–1692). The name Baden, particularly when associated with the surname Powell, became famous in 1900–1901, the year Arthur William Baden Powell was born, because of the siege of Mafeking, the most famous British action in the Second Boer War, which turned the British commander of the besieged, Robert Baden-Powell, into a national hero. Throughout the British Empire, babies were named after him. No family connection has yet been established between Arthur W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gill
A gill () is a respiratory organ that many aquatic organisms use to extract dissolved oxygen from water and to excrete carbon dioxide. The gills of some species, such as hermit crabs, have adapted to allow respiration on land provided they are kept moist. The microscopic structure of a gill presents a large surface area to the external environment. Branchia (pl. branchiae) is the zoologists' name for gills (from Ancient Greek ). With the exception of some aquatic insects, the filaments and lamellae (folds) contain blood or coelomic fluid, from which gases are exchanged through the thin walls. The blood carries oxygen to other parts of the body. Carbon dioxide passes from the blood through the thin gill tissue into the water. Gills or gill-like organs, located in different parts of the body, are found in various groups of aquatic animals, including mollusks, crustaceans, insects, fish, and amphibians. Semiterrestrial marine animals such as crabs and mudskippers have gill cham ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juan Gundlach
Juan Cristóbal Gundlach (17 July 1810 in Marburg – 14 March 1896 in Havana), born Johannes Christoph Gundlach was a Cuban naturalist and taxonomist. Biography Gundlach graduated from Marburg University, where his father was professor of physics, as Doctor of Philosophy in 1837. In 1839, he left Europe to make collections on the Caribbean island of Cuba, where he lived ever since. During a short trip to Puerto Rico, at the request of Jesuit fathers to offer assistance in the creation of a zoological collection, in 1868, when revolutionary activities were beginning in Cuba as well as Puerto Rico, he met with don Tomás Blanco, according to naturalist Dr. Agustín Stahl. A friend of Carl Wilhelm Leopold Krug, who served as German Vice Consul in Mayagüez, Puerto Rico and who paid for some of Gundlach's travels, he visited Puerto Rico in 1873, leaving Havana on 4 June 1873 on the ship Manuela, arriving in Mayagüez, Puerto Rico on 13 June, staying in Puerto Rico for approximatel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
