|
Stenoplax Conspicua
''Stenoplax conspicua'', the conspicuous chiton, is a species of polyplacophoran mollusc belonging to the family Ischnochitonidae. Description ''Stenoplax conspicua'' can reach a length of about . These chitons may be gray, green and brown, commonly with pink in the middle of the valves A valve is a device or natural object that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. Valves are technically fittings ....Sam HintoSeashore Life of Southern California/ref> Distribution and habitat This species can be found in Mexico, Baja California.Galli C.WMSDB - Worldwide Mollusc Species Data Base/ref> It lives in the middle and low tide zone under small rocks partially buried in the sand. References * Ischnochitonidae Molluscs described in 1892 {{Chiton-stub ... [...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] |
Chiton
Chitons () are marine molluscs of varying size in the class Polyplacophora (), formerly known as Amphineura. About 940 extant and 430 fossil species are recognized. They are also sometimes known as gumboots or sea cradles or coat-of-mail shells or suck-rocks, or more formally as loricates, polyplacophorans, and occasionally as polyplacophores. Chitons have a shell composed of eight separate shell plates or valves. These plates overlap slightly at the front and back edges, and yet articulate well with one another. Because of this, the shell provides protection at the same time as permitting the chiton to flex upward when needed for locomotion over uneven surfaces, and even allows the animal to curl up into a ball when dislodged from rocks. The shell plates are encircled by a skirt known as a girdle. Habitat Chitons live worldwide, from cold waters through to the tropics. They live on hard surfaces, such as on or under rocks, or in rock crevices. Some species live quite hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mollusc
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 estimated between 60,000 and 100,000 additional species. The proportion of undescribed species is very high. Many taxa remain poorly studied. Molluscs are the largest marine phylum, comprising about 23% of all the named marine organisms. Numerous molluscs also live in freshwater and terrestrial habitats. They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat. The phylum is typically divided into 7 or 8 taxonomic classes, of which two are entirely extinct. Cephalopod molluscs, such as squid, cuttlefish, and octopuses, are among the most neurologically advanced of all invertebrates—and either the giant squid or the colossal squid is the largest known invertebrate species. The gastropods ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ischnochitonidae
Ischnochitonidae is a family of polyplacophoran mollusc belonging to the superfamily Chitonoidea. MolluscaBase eds. (2022). MolluscaBase. Ischnochitonidae Dall, 1889. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=69 on 2022-06-22 Subfamilies and genera * '' Ischnochitoninae'' Dall, 1889 ** ''Callistochiton'' Dall, 1879: belongs to the family Callistoplacidae ** '' Simplischnochiton'' Van Belle, 1974: synonym of Ischnochiton Gray, 1847 ** ''Lepidozona'' Pilsbry, 1892 ** '' Radsiella'' Pilsbry, 1892 ** '' Stenochiton'' H. Adams & Angas, 1864 ** ''Stenoplax'' Dall, 1879 ** '' Stenosemus'' Middendorff, 1847 ** ''Subterenochiton'' Iredale & Hull, 1924 **''Thermochiton'' Saito & Okutani, 1990 ** '' Tonicina'' Thiele, 1906 ** '' Tripoplax'' S. S. Berry, 1919 * Callistoplacinae Pilsbry, 1893raised to family level Callistoplacidae Pilsbry, 1893 * ''Callochitoninae'': raised to family levelCallochitonidae Plate, 1901 * ''L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valve (chiton)
A valve is each articulating part of the shell of a mollusc or another multi-shelled animal such as brachiopods and some crustaceans. Each part is known as a valve or in the case of chitons, a "plate". Members of two classes of molluscs, the Bivalvia (clams) and the Polyplacophora (chitons), have valves. Species within one family of very unusual small sea snails, marine opisthobranch gastropods in the family Juliidae, also have two articulating shells or valves, which resemble those of a bivalve. This exceptional family is commonly known as the bivalved gastropods. Gastropods in general are sometimes called "univalves", because in those that have a shell, the shell is usually in one part. Chitons The valves of chitons are eight dorsal, articulated shell plates, which are frequently coloured and sculpted. After death the girdle that holds the plates together disintegrates and the plates separate. Thus individual plates can be found washed up in beach drift, as shown in the ima ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
