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Demoulia
''Demoulia'' is a genus of sea snails, marine gastropod mollusks in the family Nassariidae, the Nassa mud snails or dog whelks. Species Species within the genus ''Demoulia'' include: * ''Demoulia abbreviata'' (Gmelin, 1791) * † ''Demoulia conglobata'' (Brocchi, 1814) * ''Demoulia obtusata'' (Link, 1807) * † ''Demoulia pupa'' (Brocchi, 1814) * ''Demoulia ventricosa'' (Lamarck, 1816) ; Species brought into synonymy : * ''Demoulia kurodai'' Tomlin, 1932 : synonym of ''Nassarius sufflatus ''Nassarius'', common name nassa mud snails (USA) or dog whelks (UK), is a genus of minute to medium-sized sea snails, marine gastropod molluscs in the family Nassariidae.Bouchet, P.; Gofas, S. (2010). Nassarius Duméril, 1806. In: Bouchet, P.; ...'' (Gould, 1860) * ''Demoulia pulchra'' Gray, 1838 : synonym of ''Demoulia obtusata'' (Link, 1807) * ''Demoulia retusa'' (Lamarck, 1822): synonym of ''Demoulia ventricosa'' (Lamarck, 1816) References * Vaught, K.C. (1989). ''A classification of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Demoulia Pupa
''Demoulia'' is a genus of sea snails, marine gastropod mollusks in the family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ... Nassariidae, the Nassa mud snails or dog whelks. Species Species within the genus ''Demoulia'' include: * '' Demoulia abbreviata'' (Gmelin, 1791) * † '' Demoulia conglobata'' (Brocchi, 1814) * '' Demoulia obtusata'' (Link, 1807) * † '' Demoulia pupa'' (Brocchi, 1814) * '' Demoulia ventricosa'' (Lamarck, 1816) ; Species brought into synonymy : * ''Demoulia kurodai'' Tomlin, 1932 : synonym of '' Nassarius sufflatus'' (Gould, 1860) * ''Demoulia pulchra'' Gray, 1838 : synonym of ''Demoulia obtusata'' (Link, 1807) * ''Demoulia retusa'' (Lamarck, 1822): synonym of ''Demoulia ventricosa'' (Lamarck, 1816) References * Vaught, K.C. (1989). ''A classif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Demoulia Conglobata
''Demoulia'' is a genus of sea snails, marine gastropod mollusks in the family Nassariidae The Nassariidae, Nassa mud snails (USA), or dog whelks (UK), are a taxonomic family of small to medium-sized sea snails, marine gastropod mollusks in the clade Neogastropoda. "Dog whelk" also refers to ''Nucella lapillus''. Shell description ..., the Nassa mud snails or dog whelks. Species Species within the genus ''Demoulia'' include: * '' Demoulia abbreviata'' (Gmelin, 1791) * † '' Demoulia conglobata'' (Brocchi, 1814) * '' Demoulia obtusata'' (Link, 1807) * † '' Demoulia pupa'' (Brocchi, 1814) * '' Demoulia ventricosa'' (Lamarck, 1816) ; Species brought into synonymy : * ''Demoulia kurodai'' Tomlin, 1932 : synonym of '' Nassarius sufflatus'' (Gould, 1860) * ''Demoulia pulchra'' Gray, 1838 : synonym of ''Demoulia obtusata'' (Link, 1807) * ''Demoulia retusa'' (Lamarck, 1822): synonym of ''Demoulia ventricosa'' (Lamarck, 1816) References * Vaught, K.C. (1989). ''A classificat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Demoulia Ventricosa
''Demoulia ventricosa'', common name : the blunt demoulia, is a species of sea snail, a marine gastropod mollusk in the family Nassariidae, the Nassa mud snails or dog whelks.Gofas, S. (2015). Demoulia ventricosa. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=553033 on 2016-05-15 There is one subspecies: ''Demoulia ventricosa nataliae'' Kilburn, 1972 Description The shell size varies between 17 mm and 27 mm The ovate shell is slightly cylindrical and is blunted at its summit. The short spire is flattened. It is composed of five whorls. The two last whorls are much more swollen, and covered upon their whole surface with very fine and very close transverse striae. The suture is very apparent, and a little canaliculated. The white aperture is ovate, narrowed at its upper part and dilated inferiorly. The outer lip is thin and is ornamented interiorly with numerous transverse striae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Demoulia Obtusata
''Demoulia obtusata'', common name : the obtuse demoulia, is a species of sea snail, a marine gastropod mollusk in the family Nassariidae, the Nassa mud snails or dog whelks. Description The shell size varies between 17 mm and 25 mm Distribution This species is distributed in European waters and in the Atlantic Ocean off West Africa, Gabon and Senegal Senegal,; Wolof: ''Senegaal''; Pulaar: 𞤅𞤫𞤲𞤫𞤺𞤢𞥄𞤤𞤭 (Senegaali); Arabic: السنغال ''As-Sinighal'') officially the Republic of Senegal,; Wolof: ''Réewum Senegaal''; Pulaar : 𞤈𞤫𞤲𞤣𞤢𞥄𞤲𞤣𞤭 .... References * Cernohorsky W. O. (1984). ''Systematics of the family Nassariidae (Mollusca: Gastropoda).'' Bulletin of the Auckland Institute and Museum 14: 1–356. * Bernard, P.A. (Ed.) (1984). ''Coquillages du Gabon hells of Gabon'' Pierre A. Bernard: Libreville, Gabon. 140, 75 plates pp * Gofas, S.; Le Renard, J.; Bouchet, P. (2001). ''Mollusca, in: Costello, M.J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Demoulia Abbreviata
''Demoulia abbreviata'', common name : the obtuse demoulia, is a species of sea snail, a marine gastropod mollusk in the family Nassariidae, the Nassa mud snails or dog whelks.Gofas, S. (2015). Demoulia abbreviata. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=553036 on 15 May 2016 Description The shell size varies between 20 mm and 36 mm The ovate, ventricose shell is of a whitish or chestnut color, marked sometimes with deeper spots. The suture is deep and canaliculated, the exterior edge of which is slightly rounded and surrounded by a white band, alternated with fawn-colored blotches. The scaffolded spire is formed of six or seven nearly flat whorls. The body whorl, on the contrary, is very convex, and larger than all the others united. Upon the surface of this shell, are seen equal, raised striae. The white aperture is subrotund, narrowed at the upper part and dilated infe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nassariidae
The Nassariidae, Nassa mud snails (USA), or dog whelks (UK), are a taxonomic family of small to medium-sized sea snails, marine gastropod mollusks in the clade Neogastropoda. "Dog whelk" also refers to ''Nucella lapillus''. Shell description These snails have rounded shells with a high spire, an oval aperture, and a siphonal notch. Distribution This family of snails is found worldwide. Habitat These snails are found mostly in shallow water, on sandy or muddy substrates, often intertidally, but sometimes in deep water. They can be present in very large numbers in suitable habitat. Feeding habits Nassariidae are primarily active and lively scavengers. 2005 taxonomy The family Nassariidae is closely related to the family of the true whelks, Buccinidae, because of their shared characteristics in the anatomy of the species in these families,), i.e. a long proboscis, the loss of glandular dorsal folds, and a smaller gland of Leiblein (a dorsal venom gland in the mid-oesophagus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nassariinae
The Nassariidae, Nassa mud snails (USA), or dog whelks (UK), are a taxonomic family of small to medium-sized sea snails, marine gastropod mollusks in the clade Neogastropoda. "Dog whelk" also refers to ''Nucella lapillus''. Shell description These snails have rounded shells with a high spire, an oval aperture, and a siphonal notch. Distribution This family of snails is found worldwide. Habitat These snails are found mostly in shallow water, on sandy or muddy substrates, often intertidally, but sometimes in deep water. They can be present in very large numbers in suitable habitat. Feeding habits Nassariidae are primarily active and lively scavengers. 2005 taxonomy The family Nassariidae is closely related to the family of the true whelks, Buccinidae, because of their shared characteristics in the anatomy of the species in these families,), i.e. a long proboscis, the loss of glandular dorsal folds, and a smaller gland of Leiblein (a dorsal venom gland in the mid-oesophagus) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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] |
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] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...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] |
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] |
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