|
Asaphis Violascens
''Asaphis'' is a genus of bivalves belonging to the family Psammobiidae. The genus has almost cosmopolitan distribution. Species: *'' Asaphis deflorata'' *''Asaphis undulata ''Asaphis'' is a genus of bivalves belonging to the family Psammobiidae. The genus has almost cosmopolitan distribution In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the wo ...'' *'' Asaphis violascens'' *'' Asaphus delicatus'' References {{Taxonbar, from=Q18511024 Psammobiidae Bivalve genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asaphis Deflorata
''Asaphis deflorata'' is a species of bivalve belonging to the family Psammobiidae. The species is found in Central America, Red Sea The Red Sea ( ar, البحر الأحمر - بحر القلزم, translit=Modern: al-Baḥr al-ʾAḥmar, Medieval: Baḥr al-Qulzum; or ; Coptic: ⲫⲓⲟⲙ ⲛ̀ϩⲁϩ ''Phiom Enhah'' or ⲫⲓⲟⲙ ⲛ̀ϣⲁⲣⲓ ''Phiom ǹšari''; T ..., Indian and Pacific Ocean. References Psammobiidae Bivalves described in 1758 Taxa named by Carl Linnaeus {{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 of marine and freshwater 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, cockles, mussels, scallops, and numerous other 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 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 swim. The shipworms bore into wood, clay, or stone and live inside these substances. The shell of a bivalve is composed of calc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psammobiidae
The Psammobiidae, or sunset clams, are a family of medium-sized saltwater clams, marine bivalve molluscs of the order Cardiida. These genera are accepted by the database World Register of Marine Species: *'' Asaphis'' Modeer, 1793 *''Gari'' Schumacher, 1817 *'' Heterodonax'' Mörch, 1853 *'' Heteroglypta'' Martens ''in'' Möbius, 1880 *'' Nuttallia'' Dall, 1900 *'' Psammosphaerica'' Jousseaume, 1894 *'' Psammotella'' Herrmannsen, 1852 *'' Sanguinolaria'' Lamarck Jean-Baptiste Pierre Antoine de Monet, chevalier de Lamarck (1 August 1744 – 18 December 1829), often known simply as Lamarck (; ), was a French naturalist, biologist, academic, and soldier. He was an early proponent of the idea that biolo ..., 1799 *'' Soletellina'' Blainville, 1824 References External links ITIS* Powell A. W. B., ''New Zealand Mollusca'', William Collins Publishers Ltd, Auckland, New Zealand 1979 * Glen Pownall, ''New Zealand Shells and Shellfish'', Seven Seas Publishing Pty Ltd, Wel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cosmopolitan Distribution
In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in appropriate habitats. Such a taxon, usually a species, is said to exhibit cosmopolitanism or cosmopolitism. The extreme opposite of a cosmopolitan species is an endemic one, being found only in a single geographical location. Qualification The caveat “in appropriate habitat” is used to qualify the term "cosmopolitan distribution", excluding in most instances polar regions, extreme altitudes, oceans, deserts, or small, isolated islands. For example, the housefly is highly cosmopolitan, yet is neither oceanic nor polar in its distribution. Related terms and concepts The term pandemism also is in use, but not all authors are consistent in the sense in which they use the term; some speak of pandemism mainly in referring to diseases and pandemics, and some as a term intermediate between endemism and cosmopolitanism, in effect regarding pandemism as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asaphis Undulata
''Asaphis'' is a genus of bivalves belonging to the family Psammobiidae. The genus has almost cosmopolitan distribution In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in appropriate habitats. Such a taxon, usually a species, is said to exhibit cosmopolitanism or cosmopolitism. The ext .... Species: *'' Asaphis deflorata'' *'' Asaphis undulata'' *'' Asaphis violascens'' *'' Asaphus delicatus'' References {{Taxonbar, from=Q18511024 Psammobiidae Bivalve genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asaphis Violascens
''Asaphis'' is a genus of bivalves belonging to the family Psammobiidae. The genus has almost cosmopolitan distribution. Species: *'' Asaphis deflorata'' *''Asaphis undulata ''Asaphis'' is a genus of bivalves belonging to the family Psammobiidae. The genus has almost cosmopolitan distribution In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the wo ...'' *'' Asaphis violascens'' *'' Asaphus delicatus'' References {{Taxonbar, from=Q18511024 Psammobiidae Bivalve genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asaphus Delicatus
''Asaphus'' () is a genus of trilobites that is known from the Lower (upper Arenig) and Middle Ordovician of northwestern Europe (Sweden, Estonia, Saint Petersburg Area). Etymology The generic name is derived from the Greek word ''asaphes'', meaning "indistinct." Description The headshield (or cephalon) and tailshield (or pygidium) are semicircular and without a border (defined by a furrow or a change in convexity parallel to its margin). The cephalon is of approximately equal size as the pygidium (or isopygous). The central raised area of the cephalon (or glabella) is long, reaching the frontal margin. It may have faint lateral glabellar furrows or be smooth, and sometimes an inconspicuous tubercle is present just in front of the hardly discernible occipital ring. The natural fracture lines (sutures) of the head run along the top edges of the compound eye. From the back of the eye these cut to the back of the head (or is said to be opisthoparian) and not to the side. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
