|
Rictaxis Sanguinea
''Rictaxis'' is a genus of minute sea snails or "bubble snails", marine gastropod mollusks or micromollusks in the family Acteonidae, the "barrel bubble" snails.WoRMS (2011). Rictaxis Dall, 1871. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=160472 on 2011-12-14 The genus name is derived from Latin words, meaning “open mouth”, and “axis” referring to the columella. Species Species within the genus ''Rictaxis'' include: * '' Rictaxis albus'' (Sowerby, 1873) * '' Rictaxis painei'' (Dall, 1903) * ''Rictaxis punctocaelatus'' (Carpenter, 1864) * '' Rictaxis sanguinea'' Valdès, 2008 ; Species that have been synonymized: * ''Rictaxis punctostriatus'' : synonym of ''Japonactaeon punctostriatus'' (C. B. Adams, 1840) * '' Rictaxis albus'' Sowerby, 1873 ** Distribution : South Africa ** Length : 10–21 mm ** Description white shell with numerous spiraling white to lightbrown grooves * '' Rictaxis painei'' D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rictaxis Punctocaelatus
''Rictaxis'' is a genus of minute sea snails or "bubble snails", marine gastropod mollusks or micromollusks in the family Acteonidae, the "barrel bubble" snails.WoRMS (2011). Rictaxis Dall, 1871. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=160472 on 2011-12-14 The genus name is derived from Latin words, meaning “open mouth”, and “axis” referring to the columella. Species Species within the genus ''Rictaxis'' include: * '' Rictaxis albus'' (Sowerby, 1873) * '' Rictaxis painei'' (Dall, 1903) * ''Rictaxis punctocaelatus'' (Carpenter, 1864) * '' Rictaxis sanguinea'' Valdès, 2008 ; Species that have been synonymized: * ''Rictaxis punctostriatus'' : synonym of '' Japonactaeon punctostriatus'' (C. B. Adams, 1840) * '' Rictaxis albus'' Sowerby, 1873 ** Distribution : South Africa ** Length : 10–21 mm ** Description white shell with numerous spiraling white to lightbrown grooves * '' Rictaxis painei'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropod
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. There are many thousands of species of sea snails and slugs, as well as freshwater snails, freshwater limpets, and land snails and slugs. The class Gastropoda contains a vast total of named species, second only to the insects in overall number. The fossil history of this class goes back to the Late Cambrian. , 721 families of gastropods are known, of which 245 are extinct and appear only in the fossil record, while 476 are currently extant with or without a fossil record. Gastropoda (previously known as univalves and sometimes spelled "Gasteropoda") are a major part of the phylum Mollusca, and are the most highly diversified class in the phylum, with 65,000 to 80,000 living snail and slug species. The anatomy, behavior, feeding, and re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japonactaeon Punctostriatus
''Japonactaeon punctostriatus'', common names Adam's baby bubble and pitted baby-bubble, is a species of minute sea snail or "bubble snail", a marine gastropod mollusc or micromollusc in the family Acteonidae, the "barrel bubble" snails.Bouchet, P. (2011). Japonactaeon punctostriatus (C. B. Adams, 1840). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=420514 on 2011-12-14 Distribution This species occurs in the Western Atlantic Ocean: Florida, Gulf of Mexico, Mexico, Caribbean Sea, Venezuela. Shell description This barrel bubble snail has an ovate white shell with shouldered whorls. The body whorl has 10 -14 slightly irregular spiral grooves. The columella is twisted. The aperture is ovate and is rounded above and below. The shell length is 3 – 7.5 mm. The maximum recorded shell Shell may refer to: Architecture and design * Shell (structure), a thin structure ** Concrete shell, a thin shell of concrete, u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rictaxis Sanguinea
''Rictaxis'' is a genus of minute sea snails or "bubble snails", marine gastropod mollusks or micromollusks in the family Acteonidae, the "barrel bubble" snails.WoRMS (2011). Rictaxis Dall, 1871. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=160472 on 2011-12-14 The genus name is derived from Latin words, meaning “open mouth”, and “axis” referring to the columella. Species Species within the genus ''Rictaxis'' include: * '' Rictaxis albus'' (Sowerby, 1873) * '' Rictaxis painei'' (Dall, 1903) * ''Rictaxis punctocaelatus'' (Carpenter, 1864) * '' Rictaxis sanguinea'' Valdès, 2008 ; Species that have been synonymized: * ''Rictaxis punctostriatus'' : synonym of ''Japonactaeon punctostriatus'' (C. B. Adams, 1840) * '' Rictaxis albus'' Sowerby, 1873 ** Distribution : South Africa ** Length : 10–21 mm ** Description white shell with numerous spiraling white to lightbrown grooves * '' Rictaxis painei'' D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rictaxis Painei
''Rictaxis'' is a genus of minute sea snails or "bubble snails", marine gastropod mollusks or micromollusks in the family Acteonidae, the "barrel bubble" snails.WoRMS (2011). Rictaxis Dall, 1871. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=160472 on 2011-12-14 The genus name is derived from Latin words, meaning “open mouth”, and “axis” referring to the columella. Species Species within the genus ''Rictaxis'' include: * '' Rictaxis albus'' (Sowerby, 1873) * '' Rictaxis painei'' (Dall, 1903) * ''Rictaxis punctocaelatus'' (Carpenter, 1864) * ''Rictaxis sanguinea'' Valdès, 2008 ; Species that have been synonymized: * ''Rictaxis punctostriatus'' : synonym of ''Japonactaeon punctostriatus'' (C. B. Adams, 1840) * '' Rictaxis albus'' Sowerby, 1873 ** Distribution : South Africa ** Length : 10–21 mm ** Description white shell with numerous spiraling white to lightbrown grooves * '' Rictaxis painei'' Da ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rictaxis Albus
''Rictaxis'' is a genus of minute sea snails or "bubble snails", marine gastropod mollusks or micromollusks in the family Acteonidae, the "barrel bubble" snails.WoRMS (2011). Rictaxis Dall, 1871. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=160472 on 2011-12-14 The genus name is derived from Latin words, meaning “open mouth”, and “axis” referring to the columella. Species Species within the genus ''Rictaxis'' include: * '' Rictaxis albus'' (Sowerby, 1873) * ''Rictaxis painei'' (Dall, 1903) * ''Rictaxis punctocaelatus'' (Carpenter, 1864) * ''Rictaxis sanguinea'' Valdès, 2008 ; Species that have been synonymized: * ''Rictaxis punctostriatus'' : synonym of ''Japonactaeon punctostriatus'' (C. B. Adams, 1840) * '' Rictaxis albus'' Sowerby, 1873 ** Distribution : South Africa ** Length : 10–21 mm ** Description white shell with numerous spiraling white to lightbrown grooves * ''Rictaxis painei'' Dall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columella (mollusc)
The columella (meaning "little column") or (in older texts) pillar is a central anatomical feature of a coiled snail shell, a gastropod shell. The columella is often only clearly visible as a structure when the shell is broken, sliced in half vertically, or viewed as an X-ray image. The columella runs from the apex of the shell to the midpoint of the undersurface of the shell, or the tip of the siphonal canal in those shells which have a siphonal canal. If a snail shell is visualized as a cone of shelly material which is wrapped around a central axis, then the columella more or less coincides spatially with the central axis of the shell. In the case of shells that have an umbilicus, the columella is a hollow structure. The columella of some groups of gastropod shells can have a number of plications or folds (the columellar fold, plaits or plicae), which are usually visible when looking to the inner lip into the aperture of the shell. These folds can be wide or narrow, prominent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Micromollusk
A micromollusk is a shelled mollusk which is extremely small, even at full adult size. The word is usually, but not exclusively, applied to marine mollusks, although in addition, numerous species of land snails and freshwater mollusks also reach adult size at very small dimensions. These tiny mollusks or their tiny shells are easy to overlook, as many of them are not very noticeable to the naked eye, and thus many people are not aware that they even exist. Nonetheless there are large numbers of families and vast numbers of mollusk species, in particular marine gastropods or sea snails, which are minute enough to be considered micromollusks. Considerable numbers of marine gastropod species are only about 5 or 6 mm in adult size; many others are only about 2 or 3 mm in adult size; and a few have adult shells which are as small as one millimeter or even smaller still. Despite their tiny size, many of the shells have a good deal of elaborate sculpture. A fair number ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mollusk
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 gas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine (ocean)
The ocean (also the sea or the world ocean) is the body of salt water that covers approximately 70.8% of the surface of Earth and contains 97% of Earth's water. An ocean can also refer to any of the large bodies of water into which the world ocean is conventionally divided."Ocean." ''Merriam-Webster.com Dictionary'', Merriam-Webster, |
Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a Symmetry in biology#Bilate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Snail
Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the absence of a visible shell. Definition Determining whether some gastropods should be called sea snails is not always easy. Some species that live in brackish water (such as certain neritids) can be listed as either freshwater snails or marine snails, and some species that live at or just above the high tide level (for example species in the genus '' Truncatella'') are sometimes considered to be sea snails and sometimes listed as land snails. Anatomy Sea snails are a very large group of animals and a very diverse one. Most snails that live in salt water respire using a gill or gills; a few species, though, have a lung, are intertidal, and are active only at low tide when they can move around in the air. These air-breathing species includ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Sea Snail")