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Africotriton Petiti
''Africotriton'' is a genus of sea snails, marine gastropod mollusks in the subfamily Plesiotritoninae of the family Cancellariidae Cancellariidae, common name the nutmeg snails or nutmeg shells, are a family (biology), family of small to medium-large sea snails, marine (ocean), marine gastropod mollusks in the clade Neogastropoda. Some of the shells of the species in this ..., the nutmeg snails. Species Species within the genus ''Africotriton'' include: * '' Africotriton adelphum'' Bouchet & Petit, 2002 * '' Africotriton carinapex'' Beu & Maxwell, 1987 * '' Africotriton crebriliratus'' (G.B. Sowerby III, 1903) * '' Africotriton fictilis'' (Hinds, 1844a) * '' Africotriton kilburni'' Beu & Maxwell, 1987 * '' Africotriton multinodulatus'' Beu & Maxwell, 1987 * '' Africotriton petiti'' Beu & Maxwell, 1987 References * Beu A.G. & Maxwell P.A. (1987) ''A revision of the fossil and living gastropods related to Plesiotriton Fischer, 1884 (Family Cancellariidae, Subfamily Plesiot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Snail
Sea snails are slow-moving marine (ocean), marine gastropod Mollusca, molluscs, usually with visible external shells, such as whelk or abalone. They share the Taxonomic classification, taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the absence of a visible Gastropod shell, 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 Neritidae, 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 (gastropod), Truncatella'') are sometimes considered to be sea snails and sometimes listed as land snails. Anatomy Sea snails are a very large and diverse group of animals. 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 w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropod
Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and from the land. There are many thousands of species of sea snails and sea slug, slugs, as well as freshwater snails, freshwater limpets, land snails and slugs. The class Gastropoda is a diverse and highly successful class of mollusks within the phylum Mollusca. It 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 Furongian, Late Cambrian. , 721 family (taxonomy), families of gastropods are known, of which 245 are extinct and appear only in the fossil record, while 476 are currently neontology, extant living fossil, with or without a fossil record. Gastropoda (previously known as univalves and sometimes spelled "Gasteropoda") are a major part of the phylum Mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mollusk
Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The number of additional fossil species is estimated between 60,000 and 100,000, and 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. They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat, as numerous groups are freshwater and even terrestrial species. 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 extant i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family (, : ) 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". The delineation of what constitutes a family—or whether a described family should be acknowledged—is established and decided upon by active taxonomists. There are not strict regulations for outlining or acknowledging a family, yet in the realm of plants, these classifications often rely on both the vegetative and reproductive characteristics of plant species. Taxonomists frequently hold varying perspectives on these descriptions, leading to a lack of widespread consensus within the scientific community ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cancellariidae
Cancellariidae, common name the nutmeg snails or nutmeg shells, are a family (biology), family of small to medium-large sea snails, marine (ocean), marine gastropod mollusks in the clade Neogastropoda. Some of the shells of the species in this family resemble a nutmeg seed. Distribution This family occurs worldwide. Many species are found in deep water. Taxonomy This family consists of three following subfamilies (according to the Taxonomy of the Gastropoda (Bouchet & Rocroi, 2005), taxonomy of the Gastropoda by Bouchet & Rocroi, 2005): * Cancellariinae Forbes & Hanley, 1851 - synonym: Trigonostomatinae Cossmann, 1899 * Admetinae Troschel, 1865 - synonym: Paladmetidae Stephenson, 1941 * Plesiotritoninae Beu & Maxwell, 1937 Genera Genera in the family Cancellariidae include: *''Admete (genus), Admete'' Henrik Nikolaj Krøyer, Krøyer, 1842 *''Admetula'' Maurice Cossmann, Cossmann, 1889 *''Africotriton'' Beu & Bruce Marshall (taxonomist), Marshall, 1987 *''Agatrix'' R. Petit, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Africotriton Adelphum
''Africotriton adelphum'' is a species of sea snail, a marine gastropod mollusc in the family Cancellariidae, the nutmeg snails. Description The length of the shell attains 22.4 mm. Distribution This marine species occurs off New Caledonia New Caledonia ( ; ) is a group of islands in the southwest Pacific Ocean, southwest of Vanuatu and east of Australia. Located from Metropolitan France, it forms a Overseas France#Sui generis collectivity, ''sui generis'' collectivity of t .... References External links Bouchet P. & Petit R.E. (2002). New species of deep-water Cancellariidae (Gastropoda) from the southwestern Pacific. The Nautilus 116(3): 95–104 adelphum Gastropods described in 2002 {{cancellariidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Africotriton Carinapex
''Africotriton carinapex'' is a species of sea snail, a marine gastropod mollusk in the family Cancellariidae, the nutmeg snails. Description The length of the shell attains 11.7 mm. Distribution It is found off the coast of New South Wales New South Wales (commonly abbreviated as NSW) is a States and territories of Australia, state on the Eastern states of Australia, east coast of :Australia. It borders Queensland to the north, Victoria (state), Victoria to the south, and South ..., Australia. References * Beu, A. G.; Maxwell, P. A. (1987). A revision of the fossil and living gastropods related to Plesiotriton Fischer, 1884 (Family Cancellariidae, Subfamily Plesiotritoninae n. subfam.). With an appendix: Genera of Buccinidae Pisaniinae related to Colubraria Schumacher, 1817. New Zealand Geological Survey Paleontological Bulletin. 54: 1-140. * Hemmen, J. (2007). Recent Cancellariidae. Annotated and illustrated catalogue of Recent Cancellariidae. Privately published, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Africotriton Crebriliratus
''Africotriton crebriliratus'' is a species of sea snail, a marine gastropod mollusk in the family Cancellariidae, the nutmeg snails. Description The length of the shell attains 14 mm, its diameter 5 mm. (Original description) The shell is narrowly oblong, with a fulvous hue. It is faintly banded and variegated with brown, becoming pearly white at the apex. The spire is elongately acuminated, slightly convex at the sides. There are 5½ whorls, with the first 1½ whorls smooth and shining, and the subsequent whorls rather convex, irregularly plicate, and varicose. The shell is spirally finely grooved, and the suture is scarcely impressed. The body whorl is oblong, with rather straight sides and a very short rostrum at the base. The aperture is rather wide in the middle and narrow at each end. The columella is covered with a thin white callus that stands erect over the umbilical region, slightly and irregularly pustulate. The siphonal canal is short, narrow, and slightly recurve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Africotriton Fictilis
''Africotriton fictilis'' is a species of sea snail, a marine gastropod mollusc in the family Cancellariidae, the nutmeg snails. Description The length of the shell attains 21 mm. (Original description in Latin) The solid, ovate shell has a gray color. The whorls are rounded with longitudinal, obliquely folded ribs and narrow transverse striae. The spirals barely extend beyond the aperture, which is polished, deep, and smoothed with a contracted callous opening. Distribution This marine species occurs off the Agulhas Bank The Agulhas Bank (, from Portuguese for Cape Agulhas, ''Cabo das Agulhas'', "Cape of Needles") is a broad, shallow part of the southern African continental shelf which extends up to south of Cape Agulhas before falling steeply to the abyssal pla ..., South Africa. References * Beu, A. G.; Maxwell, P. A. (1987). A revision of the fossil and living gastropods related to Plesiotriton Fischer, 1884 (Family Cancellariidae, Subfamily Plesiotritoninae n. subfam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Africotriton Kilburni
''Africotriton kilburni'' is a species of sea snail, a marine gastropod mollusk in the family Cancellariidae, the nutmeg snails. Description Distribution This marine species occurs off Port Alfred Port Alfred is a small town with a population of just under 26,000 in the Eastern Cape province of South Africa. It is situated on the eastern seaboard of the country at the mouth of the Kowie River, almost exactly halfway between the larger ci ..., South Africa. References * Beu, A. G.; Maxwell, P. A. (1987). A revision of the fossil and living gastropods related to Plesiotriton Fischer, 1884 (Family Cancellariidae, Subfamily Plesiotritoninae n. subfam.). With an appendix: Genera of Buccinidae Pisaniinae related to Colubraria Schumacher, 1817. New Zealand Geological Survey Paleontological Bulletin. 54: 1-140. * Hemmen, J. (2007). Recent Cancellariidae. Annotated and illustrated catalogue of Recent Cancellariidae. Privately published, Wiesbaden. 428 pp. kilburni Gastropod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
