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Lepetelloidea
Lepetelloidea is a superfamily of sea snails, small deepwater limpets, marine gastropod mollusks in the clade Vetigastropoda (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). (Previously this superfamily was in the order Cocculiniformia.) WoRMS (2011). Lepetelloidea. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=382160 on 2011-08-13 Description Species in this superfamily have undivided shell muscles (except Lepetellidae). They possess secondary gill leaflets or their gills are reduced. Their radula contains a well-developed rachidian tooth. The soft body lacks subpallial (i.e. below the mantle) glands. They have paired kidneys with the right one larger. With the exception of the subfamily Choristellinae, all known lepetelloids are simultaneous hermaphrodites, meaning they possess both male and female reproductive organs at the same time. Species in the subfamily Choristellinae are g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepetelloidea
Lepetelloidea is a superfamily of sea snails, small deepwater limpets, marine gastropod mollusks in the clade Vetigastropoda (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). (Previously this superfamily was in the order Cocculiniformia.) WoRMS (2011). Lepetelloidea. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=382160 on 2011-08-13 Description Species in this superfamily have undivided shell muscles (except Lepetellidae). They possess secondary gill leaflets or their gills are reduced. Their radula contains a well-developed rachidian tooth. The soft body lacks subpallial (i.e. below the mantle) glands. They have paired kidneys with the right one larger. With the exception of the subfamily Choristellinae, all known lepetelloids are simultaneous hermaphrodites, meaning they possess both male and female reproductive organs at the same time. Species in the subfamily Choristellinae are g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepetellidae
Lepetellidae is a taxonomic family of small deepwater sea snails or limpets, marine gastropod molluscs in the superfamily Lepetelloidea in the clade Vetigastropoda (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). (It was in the order Cocculiniformia The Cocculinoidea is a superfamily of deepwater limpets (marine gastropods), the only superfamily in the order Cocculinida , one of the main orders of gastropods according to the taxonomy as set up by ( Bouchet & Rocroi, 2005). The clade Coccil ... before). Taxonomy This family consists of two following subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005): * Lepetellinae Dall, 1882 * Choristellinae Bouchet & Warén, 1979 Genera Genera within the family Lepetellidae include: Powell A. W. B., ''New Zealand Mollusca'', William Collins Publishers Ltd, Auckland, New Zealand 1979 * '' Bichoristes'' McLean, 1992 * '' Bogia'' Dantart & Luque, 1994 * '' Choristella'' Bush, 18 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyropeltidae
Pyropeltidae is a family of gastropods in the clade Vetigastropoda (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). This family has no subfamilies. Habitat Their habitat includes hydrothermal vents and whale-fall habitats.McLean J. H. (2008)"Three New Species of the Family Neolepetopsidae (Patellogastropoda) from Hydrothermal Vents and Whale Falls in the Northeastern Pacific" ''Journal of Shellfish Research'' 27(1): 15-20. Genera Genera in the family Pyropeltidae include: * ''Pyropelta ''Pyropelta'' is a genus of small sea snails, deep-water limpets, marine gastropod mollusks in the family Pyropeltidae. MolluscaBase eds. (2022). MolluscaBase. Pyropelta J. H. McLean & Haszprunar, 1987. Accessed through: World Register of Marine ...'' McLean & Haszprunar, 1987 References Further reading * McLean, J. H. (1992) "Cocculiniform limpets (Cocculinidae and Pyropeltidae) living on whale bone in the deep sea off California". ''J. Mollus. Stud'' 58: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limpet
Limpets are a group of aquatic snails that exhibit a conical shell shape (patelliform) and a strong, muscular foot. Limpets are members of the class Gastropoda, but are polyphyletic, meaning the various groups called "limpets" descended independently from different ancestral gastropods. This general category of conical shell is known as "patelliform" (dish-shaped). All members of the large and ancient marine clade Patellogastropoda are limpets. Within that clade, the members of the Patellidae family in particular are often referred to as "true limpets". Other groups, not in the same family, are also called limpets of one type or another, due to the similarity of their shells' shape. Examples include the Fissurellidae ("keyhole limpet") family, which is part of the Vetigastropoda clade (many other members of the Vetigastropoda do not have the morphology of limpets) and the Siphonariidae ("false limpets"), which use a siphon to pump water over their gills. Behaviour and ecolo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudococculinidae
Pseudococculinidae is a family of small sea snails or false limpets, marine gastropod mollusks in the superfamily Lepetelloidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).Gofas, S. (2012). Pseudococculinidae. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=23106 on 2013-02-09 This family has no subfamilies. The species in this family are hermaphroditic. They can be found from sublittoral to hadal depths. Description The shells are small (less than 6 mm), thin and translucent. The protoconch shows a long, narrow apical fold. Its microscopic sculpture is smooth with fine threads. The asymmetrical radula The radula (, ; plural radulae or radulas) is an anatomical structure used by molluscs for feeding, sometimes compared to a tongue. It is a minutely toothed, chitinous ribbon, which is typically used for scraping or cutting food before the food ... shows a broad, rachidian tooth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Osteopeltidae
Osteopeltidae is a taxonomic family of small, deep water sea snails, marine gastropod mollusks in the clade Vetigastropoda Vetigastropoda is a major Taxonomy (biology), taxonomic group of sea snails, marine (ocean), marine gastropod mollusc, mollusks that form a very ancient lineage (evolution), lineage. Taxonomically the Vetigastropoda are sometimes treated as an O ... (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).Gofas, S. (2012). Osteopeltidae. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=23085 on 2013-02-12 This family has no subfamilies. Genera Genera within the family Osteopeltidae include: * '' Osteopelta'' Marshall, 1987 - the type genus References {{Osteopeltidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vetigastropoda
Vetigastropoda is a major Taxonomy (biology), taxonomic group of sea snails, marine (ocean), marine gastropod mollusc, mollusks that form a very ancient lineage (evolution), lineage. Taxonomically the Vetigastropoda are sometimes treated as an Order (biology), order, although they are treated as an unranked clade in taxonomy of the Gastropoda (Bouchet & Rocroi, 2005), Bouchet and Rocroi, 2005. Vetigastropods are considered to be among the most primitive living gastropods, and are widely distributed in all oceans of the world. Their habitats range from the deep sea to intertidal zones. Many have exoskeleton, shells with slits or other secondary openings. One of their main characteristics is the presence of intersected crossed platy shell structure. Most vetigastropods have some bilateral asymmetry of their Organ (anatomy), organ systems. Description Vetigastropods range in size from approximately 0.08 in (2 mm) long in the case of Scissurelloidea or Skeneoidea, to more than ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomy Of The Gastropoda (Bouchet & Rocroi, 2005)
The taxonomy of the Gastropoda as it was revised in 2005 by Philippe Bouchet and Jean-Pierre Rocroi is a system for the scientific classification of gastropod mollusks. (Gastropods are a taxonomic class of animals which consists of snails and slugs of every kind, from the land, from freshwater, and from saltwater.) The paper setting out this taxonomy was published in the journal ''Malacologia''. The system encompasses both living and extinct groups, as well as some fossils whose classification as gastropods is uncertain. The Bouchet & Rocroi system was the first complete gastropod taxonomy that primarily employed the concept of clades, and was derived from research on molecular phylogenetics; in this context a clade is a "natural grouping" of organisms based upon a statistical cluster analysis. In contrast, most of the previous overall taxonomic schemes for gastropods relied on morphological features to classify these animals, and used taxon ranks such as order, superorder ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cocculiniformia
The Cocculinoidea is a superfamily of deepwater limpets (marine gastropods), the only superfamily in the order Cocculinida , one of the main orders of gastropods according to the taxonomy as set up by ( Bouchet & Rocroi, 2005). The clade Cocciliniformia used to be designated as a superorder. Taxonomy According to Bouchet & Rocroi, 2005, the superfamily Cocculinoidea contains the families Bathysciadiidae and Cocculinidae. The Cocculinoidea (Cocculinacea Dall, 1882) are combined with the Lepetelliodea (Lepetellacea Dall, 1882) in Cocculinoformia Haszprunar, 1987, referred to as a clade in Bouchet & Rocroi, 2005 although it used to be designated a superorder by Ponder & Lindberg, 1997. Bouchet & Rocroi (2005) leave the Cocculiniformia to consist only of the Cocculinoidea, having moved the Lepetelloidea to the Vetigastropoda. (Note that before the stipulation by the ICZN, the majority of invertebrate superfamilies ended in -acea, or -aceae, not -oidea.) Overview of species Sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cocculinellidae
Cocculinellidae is a family of small sea snails, deepwater limpets, marine gastropod mollusks in the clade Vetigastropoda Vetigastropoda is a major Taxonomy (biology), taxonomic group of sea snails, marine (ocean), marine gastropod mollusc, mollusks that form a very ancient lineage (evolution), lineage. Taxonomically the Vetigastropoda are sometimes treated as an O ... (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).Bouchet, P. (2011). Cocculinellidae. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=411608 on 2011-04-30 This family has no subfamilies. Genera Genera within this species include: * '' Cocculinella'' Thiele, 1909 References {{Cocculinellidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caymanabyssiidae
Caymanabyssiidae is a family of sea snails, marine gastropod mollusks in the vaude Vetigastropoda (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). This family has no subfamilies. This family was originally the subfamily Caymanabyssiinae Marshall 1985, in the family Pseudococculinidae, containing the genera ''Caymanabyssia'' and ''Colotrachelus''. The three other genena were added later by Haszprunar (1988) Description The microsculpture of the protoconch consists of prismatic crystals. The apical folds are fused. The rachidian and the lateral teeth of the radula lack cutting surfaces. They have one or several 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 ... leaflets on the left side of the soft body.José H. Leal and M. G. Harasewych, Deepest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gamete
A gamete (; , ultimately ) is a haploid cell that fuses with another haploid cell during fertilization in organisms that reproduce sexually. Gametes are an organism's reproductive cells, also referred to as sex cells. In species that produce two morphologically distinct types of gametes, and in which each individual produces only one type, a female is any individual that produces the larger type of gamete—called an ovum— and a male produces the smaller type—called a sperm. Sperm cells or spermatozoa are small and motile due to the flagellum, a tail-shaped structure that allows the cell to propel and move. In contrast, each egg cell or ovum is relatively large and non-motile. In short a gamete is an egg cell (female gamete) or a sperm (male gamete). In animals, ova mature in the ovaries of females and sperm develop in the testes of males. During fertilization, a spermatozoon and ovum unite to form a new diploid organism. Gametes carry half the genetic information of an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
