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Psittacodrillia
''Psittacodrillia'' is a genus of sea snails, marine gastropod mollusks in the family Horaiclavidae Horaiclavidae is a family of predatory sea snails, marine gastropod mollusks in the superfamily Conoidea. In 2011 this family was split off from the family Pseudomelatomidae (formerly the subfamily Crassispirinae McLean, 1971) by Bouchet P., Ka .... Species Species within the genus ''Psittacodrillia'' include: * '' Psittacodrillia albonodulosa'' (Smith E. A., 1904) * '' Psittacodrillia bairstowi'' (Sowerby III, 1886) * '' Psittacodrillia diversa'' (Smith E. A., 1882) References * R.N. Kilburn (1988), ''Turridae (Mollusca: Gastropoda) of southern Africa and Mozambique. Part 4. Subfamilies Drilliinae, Crassispirinae and Strictispirinae''; Ann. Natal Mus. Vol. 29(1) Pages 167-320 External links Tucker, J.K. 2004 ''Catalog of recent and fossil turrids (Mollusca: Gastropoda)''. Zootaxa 682:1-1295 Horaiclavidae Gastropod genera {{Horaiclavidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psittacodrillia
''Psittacodrillia'' is a genus of sea snails, marine gastropod mollusks in the family Horaiclavidae Horaiclavidae is a family of predatory sea snails, marine gastropod mollusks in the superfamily Conoidea. In 2011 this family was split off from the family Pseudomelatomidae (formerly the subfamily Crassispirinae McLean, 1971) by Bouchet P., Ka .... Species Species within the genus ''Psittacodrillia'' include: * '' Psittacodrillia albonodulosa'' (Smith E. A., 1904) * '' Psittacodrillia bairstowi'' (Sowerby III, 1886) * '' Psittacodrillia diversa'' (Smith E. A., 1882) References * R.N. Kilburn (1988), ''Turridae (Mollusca: Gastropoda) of southern Africa and Mozambique. Part 4. Subfamilies Drilliinae, Crassispirinae and Strictispirinae''; Ann. Natal Mus. Vol. 29(1) Pages 167-320 External links Tucker, J.K. 2004 ''Catalog of recent and fossil turrids (Mollusca: Gastropoda)''. Zootaxa 682:1-1295 Horaiclavidae Gastropod genera {{Horaiclavidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psittacodrillia Bairstowi
''Psittacodrillia bairstowi'' is a species of sea snail, a marine gastropod mollusk in the family Horaiclavidae Horaiclavidae is a family of predatory sea snails, marine gastropod mollusks in the superfamily Conoidea. In 2011 this family was split off from the family Pseudomelatomidae (formerly the subfamily Crassispirinae McLean, 1971) by Bouchet P., Ka .... Description The length of the shell varies between 9 mm and 12 mm. The characters of the shell resemble those of '' Psittacodrillia albonodulosa'' (Smith E. A., 1904), but the fifth whorl has 11 axial ribs. Its color is white with dark reddish streaks between the ribs. The apex is pailliform. The shell shows spiral threads overall. Distribution This marine species occurs off False Bay – North Transkei. South Africa References * Sowerby, G. B III. 1886. ''Marine shells of South Africa, collected at Port Elizabeth, with descriptions of some species''. J. Conch. Lond. 5: 1–13. P. Bartsch (1915), Repo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psittacodrillia Diversa
''Psittacodrillia diversa'' is a species of sea snail, a marine gastropod mollusk in the family Horaiclavidae. Description The length of the shell attains 14 mm, its diameter 5.5 mm. The biconic-claviform shell has about two whorls in the protoconch and five weakly convex whorls in the teleoconch. The shell shows 10 to 12 axial ribs on the early whorls and 9 to 11 on the penultimate whorl. The ribs only occupy the lower two-thirds of the whorl, the remainder being simple. The spiral striation is fine; that towards the base of the body whorl is a trifle coarser. The aperture is oblong. The siphonal canal is wide. The columella is slightly convex and has a moderately thick callus. The shell is orange-red with darker red spots in the intervals on the whorls. Distribution This marine species occurs off Jeffrey's Bay - East Cape, South Africa References * Kilburn, R.N. & Rippey, E. (1982) ''Sea Shells of Southern Africa''. Macmillan South Africa, Johannesburg, xi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psittacodrillia Albonodulosa
''Psittacodrillia albonodulosa'' is a species of sea snail, a marine gastropod mollusk in the family Horaiclavidae. Description The length of the shell attains 8.3 mm, its diameter 4 mm. The small, dark-red shell contains six convex whorls and, contrary to the other species in this genus, the apex is not papilliform but slightly depressed. The shell has 10 axial ribs on the whorls. The body whorl has only 6 or 7 ribs, the last part without ribs. The white marks on the ribs is continued as a white band on the smooth part, but it is superficial and not deeply seated. The shell shows spiral striae over whole whorl, 5–6 on the sulcus, 14-15 (or more) below (visible in worn specimens only between the ribs) and c. 15 stronger and more widely spaced striae on base. The aperture is oblong-ovate. The outer lip has a thin border. The columella is upright and shows a small callus. The wide siphonal canal is shallow [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horaiclavidae
Horaiclavidae is a family of predatory sea snails, marine gastropod mollusks in the superfamily Conoidea. In 2011 this family was split off from the family Pseudomelatomidae (formerly the subfamily Crassispirinae McLean, 1971) by Bouchet P., Kantor Yu.I., Sysoev A. & Puillandre N. in their publication "A new operational classification of the Conoidea". It forms a clade together with the family Clavatulidae. It has many characters in common with the family Pseudomelatomidae, except the smaller shell with a low spire, the short siphonal canal and a weak or absent spiral sculpture. The radular formula is 1-0-0-0-1, but some species in this family lack a radula. Genera Genera within the family Horaiclavidae include: * '' Anacithara'' Hedley, 1922 * '' Anguloclavus'' Shuto, 1983 * '' Aoteadrillia'' Powell, 1942 * '' Asperosculptura'' Ardovini, Poppe & Tagaro, 2021 * '' Austrocarina'' Laseron, 1954 * '' Austrodrillia'' Hedley, 1918 * ''Buchema'' Corea, 1934 * '' Carinapex'' Dall, 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. 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 ... [...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] |
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] |
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] |
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] |
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