|
Otoconcha Oconnori
''Otoconcha'' is a genus of small air-breathing semi-slugs, terrestrial pulmonate gastropod 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 esti ...s in the family Charopidae. ''Otoconcha'' is the type genus of the subfamily Otoconchinae. Description Frederick Wollaston Hutton firstly defined this genus in 1884. Hutton's diagnosis reads as follows: Species Species within the genus ''Otoconcha'' include: * '' Otoconcha dimidiata'' (Pfeiffer, 1853) - type species * '' Otoconcha fiordlandica'' (Dell, 1952) * '' Otoconcha oconnori'' (Powell, 1941) * '' Otoconcha roscoei'' Climo, 1971 References This article incorporates public domain text from the reference External links * Baker H. B. (1938) "The Endodont genus ''Otochoncha''". '' Journal of Molluscan Studies'' 23pag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otoconcha Dimidiata
''Otoconcha dimidiata'' is a species of small air-breathing semi-slug, a terrestrial pulmonate gastropod mollusc in the family Charopidae. It has a very thin and cap like shell hidden under its skin in the rounded swelling behind the head. ''Otoconcha dimidiata'' is the type species of the genus ''Otoconcha''. Distribution This species occurs in both North and South islands of New Zealand. Habitat This semi slug lives in rotting logs where it is rarely seen because of its secretive habits, but it is not rare. It can be found by careful searching by torch light in damp areas of native forest. Ecology ''Otoconcha dimidiata'' is the preferred prey of the carnivorous land gastropod ''Schizoglossa novoseelandica''. Murdoch R. C. (1894) "Notes on the variation and habits of ''Schizoglossa novoseelandica''". ''Proceedings of the malacological society The ''Journal of Molluscan Studies'' is the peer-reviewed scientific journal of the Malacological Society of London, coveri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whorl (mollusc)
A whorl is a single, complete 360° revolution or turn in the spiral growth of a mollusc shell. A spiral configuration of the shell is found in numerous gastropods, but it is also found in shelled cephalopods including ''Nautilus'', ''Spirula'' and the large extinct subclass of cephalopods known as the ammonites. A spiral shell can be visualized as consisting of a long conical tube, the growth of which is coiled into an overall helical or planispiral shape, for reasons of both strength and compactness. The number of whorls which exist in an adult shell of a particular species depends on mathematical factors in the geometric growth, as described in D'Arcy Wentworth Thompson's classic 1917 book ''On Growth and Form'', and by David Raup. The main factor is how rapidly the conical tube expands (or flares-out) over time. When the rate of expansion is low, such that each subsequent whorl is not that much wider than the previous one, then the adult shell has numerous whorls. When the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Journal Of Molluscan Studies
The ''Journal of Molluscan Studies'' is the peer-reviewed scientific journal of the Malacological Society of London, covering research in malacology.About the journal accessed 6 December 2010. Previous names of this journal include ''Proceedings of the Malacological Society'', and ''Proceedings of the Malacological Society of London'' (abbreviated as ''Proc. Malacol. Soc. Lond.''). Abstracting and indexing The journal is abstracted and indexed by ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horace Burrington Baker
Horace Burrington Baker (1889–1971) was an American malacologist.Coan E. V. & Kabat A. R. (January 27, 2017)2,400 years of malacology, 14th ed. 1443 pp. American Malacological Society. He was born in Sioux City, Iowa, and after serving as a lieutenant in the U.S. Army in 1917–18, was awarded a PhD in 1920 by the University of Michigan. He became a zoologist specializing in malacology. He was an instructor at the University of Pennsylvania in 1920, an assistant professor in 1926, an associate professor in 1928 and professor from 1939 to 1959. He was also business manager (1932–56) and editor (1957–70) of the ''Nautilus'', the journal of malacology. His spouse was Bernadine C. Baker (1906). A species of snake, ''Leptodeira ''Leptodeira'' is a genus of colubrid snakes commonly referred to as cat-eyed snakes. The genus consists of 17 species that are native to primarily Mexico and Central America, but range as far north as the Rio Grande Valley region of Texas in Uni ... ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otoconcha Roscoei
''Otoconcha'' is a genus of small air-breathing semi-slugs, terrestrial pulmonate gastropod molluscs in the family Charopidae. ''Otoconcha'' is the type genus of the subfamily Otoconchinae. Description Frederick Wollaston Hutton firstly defined this genus in 1884. Hutton's diagnosis reads as follows: Species Species within the genus ''Otoconcha'' include: * ''Otoconcha dimidiata'' (Pfeiffer, 1853) - type species * ''Otoconcha fiordlandica'' (Dell, 1952) * ''Otoconcha oconnori'' (Powell, 1941) * ''Otoconcha roscoei'' Climo, 1971 References This article incorporates public domain text from the reference External links * Baker H. B. (1938) "The Endodont genus ''Otochoncha''". ''Journal of Molluscan Studies The ''Journal of Molluscan Studies'' is the peer-reviewed scientific journal of the Malacological Society of London, covering research in malacology. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otoconcha Oconnori
''Otoconcha'' is a genus of small air-breathing semi-slugs, terrestrial pulmonate gastropod 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 esti ...s in the family Charopidae. ''Otoconcha'' is the type genus of the subfamily Otoconchinae. Description Frederick Wollaston Hutton firstly defined this genus in 1884. Hutton's diagnosis reads as follows: Species Species within the genus ''Otoconcha'' include: * '' Otoconcha dimidiata'' (Pfeiffer, 1853) - type species * '' Otoconcha fiordlandica'' (Dell, 1952) * '' Otoconcha oconnori'' (Powell, 1941) * '' Otoconcha roscoei'' Climo, 1971 References This article incorporates public domain text from the reference External links * Baker H. B. (1938) "The Endodont genus ''Otochoncha''". '' Journal of Molluscan Studies'' 23pag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otoconcha Fiordlandica
''Otoconcha'' is a genus of small air-breathing semi-slugs, terrestrial pulmonate gastropod molluscs in the family Charopidae. ''Otoconcha'' is the type genus of the subfamily Otoconchinae. Description Frederick Wollaston Hutton firstly defined this genus in 1884. Hutton's diagnosis reads as follows: Species Species within the genus ''Otoconcha'' include: * '' Otoconcha dimidiata'' (Pfeiffer, 1853) - type species * '' Otoconcha fiordlandica'' (Dell, 1952) * ''Otoconcha oconnori ''Otoconcha'' is a genus of small air-breathing semi-slugs, terrestrial pulmonate gastropod mollusc Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollus ...'' (Powell, 1941) * '' Otoconcha roscoei'' Climo, 1971 References This article incorporates public domain text from the reference External links * Baker H. B. (1938) "The Endodont genus ''Otochoncha''". '' Journal of Molluscan Studies'' 23page ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digestive System Of Gastropods
The digestive system of gastropods has evolved to suit almost every kind of diet and feeding behavior. Gastropods (snails and slugs) as the largest taxonomic class of the mollusca are very diverse: the group includes carnivores, herbivores, scavengers, filter feeders, and even parasites. In particular, the radula is often highly adapted to the specific diet of the various group of gastropods. Another distinctive feature of the digestive tract is that, along with the rest of the visceral mass, it has undergone torsion, twisting around through 180 degrees during the larval stage, so that the anus of the animal is located above its head. A number of species have developed special adaptations to feeding, such as the "drill" of some limpets, or the harpoon of the neogastropod genus ''Conus''. Filter feeders use the gills, mantle lining, or nets of mucus to trap their prey, which they then pull into the mouth with the radula. The highly modified parasitic genus '' Enteroxenos'' has no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caudal Mucous Pit
The caudal mucous pit, or caudal mucous horn, is an anatomical structure on the tail end of the foot of various land snails and slugs, terrestrial pulmonate gastropod mollusks. The function of this pit is the resorption of mucus when the gastropod is moving (see also Muratov 1999). An incorrect and yet often-used term for this structure is the "caudal gland".Barker G. M. (2001) "Gastropods on Land: Phylogeny, Diversity and Adaptive Morphology." in Barker G. M. (ed.):The biology of terrestrial molluscs. CABI Publishing, Oxon, UK, . 1-146, cited pages: page 90 and pages 140-143. This area also used to be referred to by the term "caudal pore". Families Families of snails and slug where a caudal mucous pit exists in every species included: * Arionidae: * Endodontidae * Polygyridae * Helicodiscidae * Daudebardiinae (a subfamily of Oxychilidae) * Urocyclidae * Helicarionidae * Ariophantidae * Systrophiidae (Systrophiidae is a synonym for Scolodontinae, the subfamily of fa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mantle (mollusc)
The mantle (also known by the Latin word pallium meaning mantle, robe or cloak, adjective pallial) is a significant part of the anatomy of molluscs: it is the dorsal body wall which covers the visceral mass and usually protrudes in the form of flaps well beyond the visceral mass itself. In many species of molluscs the epidermis of the mantle secretes calcium carbonate and conchiolin, and creates a shell. In sea slugs there is a progressive loss of the shell and the mantle becomes the dorsal surface of the animal. The words mantle and pallium both originally meant cloak or cape, see mantle (vesture). This anatomical structure in molluscs often resembles a cloak because in many groups the edges of the mantle, usually referred to as the ''mantle margin'', extend far beyond the main part of the body, forming flaps, double-layered structures which have been adapted for many different uses, including for example, the siphon. Mantle cavity The ''mantle cavity'' is a central fea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limaciform
{{Short pages monitor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropod Shell
The gastropod shell is part of the body of a Gastropoda, gastropod or snail, a kind of mollusc. The shell is an exoskeleton, which protects from predators, mechanical damage, and dehydration, but also serves for muscle attachment and calcium storage. Some gastropods appear shell-less (slugs) but may have a remnant within the mantle, or in some cases the shell is reduced such that the body cannot be retracted within it (semi-slug). Some snails also possess an operculum that seals the opening of the shell, known as the Aperture (mollusc), aperture, which provides further protection. The study of mollusc shells is known as conchology. The biological study of gastropods, and other molluscs in general, is malacology. Shell morphology terms vary by species group. Shell layers The gastropod shell has three major layers secreted by the Mantle (mollusc), mantle. The calcareous central layer, tracum, is typically made of calcium carbonate precipitated into an organic matrix known as c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
