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Sphaeriidae
Sphaeriidae is a family of small to minute freshwater bivalve molluscs in the order Sphaeriida. In the US, they are commonly known as pea clams or fingernail clams. Heard, William H. 1977. Reproduction of fingernail clams (Sphaeriidae: ''Sphaerium'' and ''Musculium''). Malacologia, 16: 421-455. Genera Genera: * Euperinae ** '' Byssanodonta'' d'Orbigny, 1846 ** '' Eupera'' Bourguignat, 1854 * Sphaeriinae ** '' Afropisidium'' Kuiper, 1962 ** '' Euglesa'' Jenyns, 1832 ** '' Musculium'' Link, 1807 ** '' Odhneripisidium'' Kuiper, 1962 ** '' Pisidium'' C. Pfeiffer, 1821 ** '' Sphaerium'' Scopoli, 1777 * fossils ** †'' Megasphaerioides'' Komatsu, J.-H. Chen & Q.-F. Wang, 2003 ** †'' Protosphaerium'' Hocknull, 2000 ** †'' Sphaericoncha'' Kolesnikov, 1980 Biology and ecology Sphaeriidae are hermaphrodites with internal fertilization. Developing young are incubated within their mother ( ovoviviparity), and newborn clams look like miniature copies of the adults. Parasites and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphaeriidae
Sphaeriidae is a family of small to minute freshwater bivalve molluscs in the order Sphaeriida. In the US, they are commonly known as pea clams or fingernail clams. Heard, William H. 1977. Reproduction of fingernail clams (Sphaeriidae: ''Sphaerium'' and ''Musculium''). Malacologia, 16: 421-455. Genera Genera: * Euperinae ** '' Byssanodonta'' d'Orbigny, 1846 ** '' Eupera'' Bourguignat, 1854 * Sphaeriinae ** '' Afropisidium'' Kuiper, 1962 ** '' Euglesa'' Jenyns, 1832 ** '' Musculium'' Link, 1807 ** '' Odhneripisidium'' Kuiper, 1962 ** '' Pisidium'' C. Pfeiffer, 1821 ** '' Sphaerium'' Scopoli, 1777 * fossils ** †'' Megasphaerioides'' Komatsu, J.-H. Chen & Q.-F. Wang, 2003 ** †'' Protosphaerium'' Hocknull, 2000 ** †'' Sphaericoncha'' Kolesnikov, 1980 Biology and ecology Sphaeriidae are hermaphrodites with internal fertilization. Developing young are incubated within their mother ( ovoviviparity), and newborn clams look like miniature copies of the adults. Parasites and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Musculium
''Musculium'' is a genus of small freshwater clams, aquatic bivalve molluscs in the family Sphaeriidae, the fingernail clams and pea clams. Species Species and subgenera within this genera include: Subgenus ''Musculium'' Link, 1807 * ''Musculium lacustre'' (O. F. Müller, 1774) * ''Musculium transversum'' (Say, 1829) Subgenus ? * ''Musculium forbesi'' (Philippi, 1869) * ''Musculium lauricochae'' (Philippi, 1869) * ''Musculium titicacense ''Musculium'' is a genus of small freshwater clams, aquatic bivalve molluscs in the family Sphaeriidae, the fingernail clams and pea clams. Species Species and subgenera within this genera include: Subgenus ''Musculium'' Link, 1807 * ''Muscul ...'' (Pilsbry, 1924) References Sphaeriidae Bivalve genera {{Sphaeriidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eupera
''Eupera'' is a genus of bivalves belonging to the family Sphaeriidae. The species of this genus are found in America and Africa. Species: *'' Eupera bahamensis'' *''Eupera bahiensis'' *'' Eupera barbadensis'' *'' Eupera crassa'' *'' Eupera cubensis'' *'' Eupera degorteri'' *'' Eupera doellojuradoi'' *'' Eupera elliptica'' *'' Eupera ferruginea'' *'' Eupera gravis'' *'' Eupera guaraniana'' *'' Eupera haitiensis'' *'' Eupera iguazuensis'' *'' Eupera insignis'' *'' Eupera klappenbachi'' *'' Eupera meridionalis'' *'' Eupera missouriensis'' *'' Eupera modioliforme'' *'' Eupera moquiniana'' *'' Eupera onestae'' *'' Eupera ovata'' *'' Eupera parvula'' *'' Eupera pittieri'' *'' Eupera platensis'' *'' Eupera portoricensis'' *'' Eupera primei'' *'' Eupera simoni'' *'' Eupera singleyi'' *'' Eupera sturanyi'' *'' Eupera sublaevigata'' *'' Eupera triangularis'' *'' Eupera troglobia'' *'' Eupera tumida'' *'' Eupera veatleyi'' *'' Eupera ventricosa'' *''Eupe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphaerium
''Sphaerium'' is a genus of very small freshwater clams, aquatic bivalve molluscs in the family Sphaeriidae, known as the fingernail clams. The small clams in this genus are unusual in that many of them, such as '' Sphaerium corneum'', can climb around underwater on aquatic plants, using their long and strong foot. Species * Subgenus ''Sphaerium'' Scopoli, 1777 :*'' Sphaerium corneum'' (Linnaeus, 1758) – European fingernail clam * Subgenus ''Nucleocyclas'' Alimov & Starobogatov, 1968 :* ''Sphaerium nucleus'' (Studer, 1820) :* ''Sphaerium ovale'' ( A. Férussac, 1807) * Subgenus ''Parasphaerium'' Alimov & Starobogatov, 1968 :*'' Sphaerium nitidum'' Clessin, 1876 – Arctic fingernail clam * Subgenus ''Amesoda'' Rafinesque, 1820 :* '' Sphaerium rivicola'' (Lamarck, 1818) * Subgenus ''Cyrenastrum'' Bourguignat, 1854 :* ''Sphaerium solidum'' (Normand, 1844) * Without subgenus :*''Sphaerium asiaticum'' (Martens, 1864) :* '' Sphaerium bequaerti'' (Dautzenberg & Germain, 1914) – ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pisidium
''Pisidium'' is a genus of very small or minute freshwater clams known as pill clams or pea clams, aquatic bivalve molluscs in the family Sphaeriidae, the pea clams and fingernail clams. In some bivalve classification systems, the family Sphaeriidae is referred to as Pisidiidae, and occasionally ''Pisidium'' species are grouped in a subfamily known as Pisidiinae. ''Pisidium'' and taphonomy In large enough quantities, the minute shells of these bivalves can affect environmental conditions, and this change in conditions can positively affect the ability of organic remains in the immediate environment to fossilize (one aspect of taphonomy). For example, in the Dinosaur Park Formation, the fossil remains of hadrosaur eggshells are rare. This is because the breakdown of tannins from the local coniferous vegetation caused the ancient waters to be acidic, and therefore usually eggshell fragments dissolved in the water before they had a chance to be fossilized. Hadrosaur eggshel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euglesa
''Euglesa'' is a genus of bivalves belonging to the family Sphaeriidae Sphaeriidae is a family of small to minute freshwater bivalve molluscs in the order Sphaeriida. In the US, they are commonly known as pea clams or fingernail clams. Heard, William H. 1977. Reproduction of fingernail clams (Sphaeriidae: ''Sphae .... Species: *'' Euglesa adamsi'' *'' Euglesa atkinsoniana'' *'' Euglesa cara'' *'' Euglesa casertana'' *'' Euglesa cavatica'' *'' Euglesa centrale'' *'' Euglesa chankensis'' *'' Euglesa clausi'' *'' Euglesa compressa'' *'' Euglesa conventus'' *'' Euglesa coreana'' *'' Euglesa edlaueri'' *'' Euglesa equilateralis'' *'' Euglesa etheridgei'' *'' Euglesa ethiopica'' *'' Euglesa fallax'' *'' Euglesa ferruginea'' *'' Euglesa floresiana'' *'' Euglesa fultoni'' *'' Euglesa globularis'' *'' Euglesa granum'' *'' Euglesa gurvichi'' *'' Euglesa hallae'' *'' Euglesa henslowana'' *'' Euglesa hinzi'' *'' Euglesa interstitialis'' *'' Euglesa korniushin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphaerium Corneum
''Sphaerium corneum'', also known as the European fingernailclam, is a very small freshwater clam, an aquatic bivalve mollusk in the family Sphaeriidae, the fingernail clams. Description The shell is fairly globular and can grow up to 9–13.5 mm in size. The color of the shell is usually a brown to gray with the juveniles being a yellow color. Their shells exhibit striae, thin parallel rows of elevated lines. Revisiondate: 3/23/2007 Ecology These small clams are found in shallow, freshwater habitats with slow moving waters, including freshwater lakes, rivers and creeks. As with most bivalves, ''Sphaerium corneum'' is mainly a filter feeder and thus prefers more eutrophic waters that provide a greater food source. These clams have exhibited a unique ability to climb up plants and structures around their habitat to find more optimal locations for feeding. They also are known to deposit feed in times of low current or food availability. This species has shown a preferen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Afropisidium
''Afropisidium'' is a genus of bivalves belonging to the family Sphaeriidae Sphaeriidae is a family of small to minute freshwater bivalve molluscs in the order Sphaeriida. In the US, they are commonly known as pea clams or fingernail clams. Heard, William H. 1977. Reproduction of fingernail clams (Sphaeriidae: ''Sphae .... The species of this genus are found in Southern America, Africa and Southeastern Asia. Species: *'' Afropisidium aslini'' *'' Afropisidium chandanbariensis'' *'' Afropisidium chilensis'' *'' Afropisidium clarkeanum'' *'' Afropisidium ellisi'' *'' Afropisidium giraudi'' *'' Afropisidium hodgkini'' *'' Afropisidium javanum'' *'' Afropisidium nevillianum'' *'' Afropisidium pirothi'' *'' Afropisidium sterkianum'' *'' Afropisidium stoliczkanum'' *'' Afropisidium sundanum'' References {{Taxonbar, from=Q98768341 Sphaeriidae Bivalve genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphaeriida
Sphaeriida is an order of bivalves belonging to the class Bivalvia. Families: * Neomiodontidae * Sphaeriidae Sphaeriidae is a family of small to minute freshwater bivalve molluscs in the order Sphaeriida. In the US, they are commonly known as pea clams or fingernail clams. Heard, William H. 1977. Reproduction of fingernail clams (Sphaeriidae: ''Sphaer ... References Bivalves Bivalve orders {{bivalve-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bivalve
Bivalvia (), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class (biology), class of marine and freshwater Mollusca, molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. As a group, bivalves have no head and they lack some usual molluscan organs, like the radula and the odontophore. They include the clams, oysters, Cockle (bivalve), cockles, mussels, scallops, and numerous other family (biology), families that live in saltwater, as well as a number of families that live in freshwater. The majority are filter feeders. The gills have evolved into Ctenidium (mollusc), ctenidia, specialised organs for feeding and breathing. Most bivalves bury themselves in sediment, where they are relatively safe from predation. Others lie on the sea floor or attach themselves to rocks or other hard surfaces. Some bivalves, such as the scallops and file shells, can nekton, swim. The shipworms bore into wood, clay, or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gérard Paul Deshayes
Gérard Paul Deshayes (; 13 May 1795 – 9 June 1875) was a French geologist and conchologist. Career He was born in Nancy, his father at that time being professor of experimental physics in the École Centrale of the département Meurthe He studied medicine in Strasbourg, and afterwards took the degree of ''bachelier ès lettres'' in Paris in 1821; but he abandoned the medical profession in order to devote himself to natural history. For some time he gave private lessons on geology, and subsequently became professor of natural history in the Muséum National d'Histoire Naturelle. He was distinguished for his researches on the fossil mollusca of the Paris Basin and of other areas Cenozoic cover. His studies on the relations of the fossil to the recent species led him as early as 1829 to conclusions somewhat similar to those arrived at by Lyell, to whom Deshayes rendered much assistance in connection with the classification of the, then, Tertiary system into Eocene, Miocene an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sciomyzidae
The family Sciomyzidae belongs to the typical flies (Brachycera) of the order Diptera. They are commonly called marsh flies, and in some cases snail-killing flies due to the food of their larvae. Here, the Huttoninidae, Phaeomyiidae and Tetanoceridae are provisionally included in the Sciomyzidae. Particularly the latter seem to be an unequivocal part of this group and are ranked as tribe of subfamily Sciomyzinae by most modern authors, while the former two are very small lineages that may or may not stand outside the family and are provisionally ranked as subfamilies here. Whether the Salticellinae and the group around '' Sepedon'' warrant recognition as additional subfamilies or are better included in the Sciomyzinae proper is likewise not yet entirely clear. Altogether, the main point of contention is the relationship between the "Huttoninidae", "Phaeomyiidae", Sciomyzidae ''sensu stricto'', and the Helosciomyzidae which were also once included in the Sciomyzidae. Sciomyz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
