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Phasianellidae
Phasianellidae common name the "pheasant shells" or "pheasant snails" is a family of small sea snails with calcareous opercula, marine gastropod mollusks in the subclass Vetigastropoda Vetigastropoda is a major Taxonomy (biology), taxonomic group of sea snails, marine (ocean), marine gastropod mollusc, mollusks that form a very ancient lineage (evolution), lineage. Taxonomically the Vetigastropoda are sometimes treated as an O .... Taxonomy The family Phasianellidae consists of three subfamilies: * Gabrieloninae Hickman & J.H. McLean, 1990 ** '' Gabrielona'' Iredale, 1917 - type genus of the subfamily Gabrieloninae * Phasianellinae Swainson, 1840 - synonym: Eutropiinae Gray, 1871 ** '' Mimelenchus'' Iredale, 1924 ** '' Orthomesus'' Pilsbry, 1888 ** '' Phasianella'' Lamarck, 1804 * Tricoliinae Woodring, 1928 ** '' Tricolia'' Risso, 1826 - type genus of the subfamily Tricoliinae Additionally there are two additional genera not placed in any subfamily: * '' Eulithidium' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phasianella
''Phasianella'', common name the pheasant shells, is a genus of small sea snails with a calcareous operculum and a colorfully patterned shell, a marine gastropod mollusc in the family Phasianellidae. Description The white shell has a bulimiform or subglobose shape. It is polished, without epidermis or nacre, variegated with bright colors. The heavy operculum is calcareous, internally paucispiral, with a nucleus near the basal margin. It is externally convex. The columella is smooth, arcuate and not dentate. The animal has long tentacles, and has usually pectinated head lobes. These frontal lobes distinguish this genus from '' Tricolia'', which lacks frontal lobes. The epipodial line contains generally cirrhi. The branchial plume is long. The narrow foot is long, pointed posteriorly, rounded before. Below it is divided longitudinally by a median groove. The rhomboidal jaws are covered with imbricating scales. The radula is rather short. The formula of teeth is typically ∞ 5 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phasianella Variegata
''Phasianella solida'', common name the solid pheasant, is a species of sea snail, a marine gastropod mollusk in the family Phasianellidae. Description The size of the shell varies between 8 mm and 32 mm. Protoconch is smooth and the shell is brilliant, long, thin and turban-shaped, usually pale brown, reddish or pinkish, marked with variable blotches. It shows four-five rounded whorls. The operculum is white, oval-shaped. (Description of ''Phasianella aethiopica'') The height of the shell varies between 12 mm and 35 mm. The thick, solid shell has a pointed-ovate shape. The 5–6 whorls are moderately convex, sloping below the sutures. The oblique, ovate aperture is about half the length of shell. The thickened columella has a heavy white or rosy callus, and is subdentate near the posterior angle of the aperture. The color of the shell is light brown or rose, with revolving series of arrow-shapeci or irregular flecks of lighter shade, or with longitudinal o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eulithidium
''Eulithidium'' is a genus of small colorful sea snails, marine gastropod mollusks in the family Phasianellidae, the pheasant shells. Several species in this genus were originally placed in the genus ''Eucosmia''. However, the name ''Eucosmia'' was pre-occupied in zoology for a group of moths established by Stephens in 1829. The molluscan ''Eucosmia'' was therefore called ''Eulithidium'' to distinguish it from the group of Lepidoptera Lepidoptera ( ) is an order (biology), order of insects that includes butterfly, butterflies and moths (both are called lepidopterans). About 180,000 species of the Lepidoptera are described, in 126 Family (biology), families and 46 Taxonomic r .... Species Species within the genus ''Eulithidium'' include: * '' Eulithidium adamsi'' (Philippi, 1853) * '' Eulithidium affine'' (C. B. Adams, 1850) * '' Eulithidium beaui'' (Robertson, 1958) * '' Eulithidium bellum'' (M. Smith, 1937) * '' Eulithidium comptum'' (Gould, 1855) * '' Eulithidium cyclost ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gabrielona
''Gabrielona'' is a genus of sea snails, marine gastropod mollusks in the family Phasianellidae Phasianellidae common name the "pheasant shells" or "pheasant snails" is a family of small sea snails with calcareous opercula, marine gastropod mollusks in the subclass Vetigastropoda Vetigastropoda is a major Taxonomy (biology), taxonomi .... Species Species within the genus ''Gabrielona'' include: * '' Gabrielona hadra'' (Woodring, 1928) * '' Gabrielona nepeanensis'' (Gatliff & Gabriel, 1908) * '' Gabrielona pisinna'' Robertson, 1973 * '' Gabrielona raunana'' Ladd, 1966 * '' Gabrielona roni'' Moolenbeek & Dekker, 1993 * '' Gabrielona sulcifera'' Robertson, 1973 References * Williams S.T., Karube S. & Ozawa T. (2008) ''Molecular systematics of Vetigastropoda: Trochidae, Turbinidae and Trochoidea redefined''. Zoologica Scripta 37: 483–506. Phasianellidae {{Phasianellidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tricolia
''Tricolia'' is a genus of sea snails, marine gastropod mollusks in the subfamily Tricoliinae of the family Phasianellidae. This genus formerly belonged to the family Tricoliidae. Description This genus consists of small species with a head without frontal lobes. The shell is ovate, elongated, and imperforate. The radula has a broad, simple median tooth, overlying the bases of the inner laterals. These are subrhomboidal, produced at their outer angles into wings which overlie the bases of the adjacent tooth outward, and have denticulate cusps. The outer lateral is narrow, not produced on the outer angle. The marginal teeth have long simple cusps, The columella is smooth, arcuate, and not dentate. Distribution The species occurs in all tropical and subtropical seas. Species Species within the genus ''Tricolia'' include: * '' Tricolia adusta'' Nangammbi & Herbert, 2006 * '' Tricolia algoidea'' (Pallary, 1920) * '' Tricolia bicarinata'' Dunker, 1846 * '' Tricolia capensis'' ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vetigastropoda
Vetigastropoda is a major Taxonomy (biology), taxonomic group of sea snails, marine (ocean), marine gastropod mollusc, mollusks that form a very ancient lineage (evolution), lineage. Taxonomically the Vetigastropoda are sometimes treated as an Order (biology), order, although they are treated as an unranked clade in taxonomy of the Gastropoda (Bouchet & Rocroi, 2005), Bouchet and Rocroi, 2005. Vetigastropods are considered to be among the most primitive living gastropods, and are widely distributed in all oceans of the world. Their habitats range from the deep sea to intertidal zones. Many have exoskeleton, shells with slits or other secondary openings. One of their main characteristics is the presence of intersected crossed platy shell structure. Most vetigastropods have some bilateral asymmetry of their Organ (anatomy), organ systems. Description Vetigastropods range in size from approximately 0.08 in (2 mm) long in the case of Scissurelloidea or Skeneoidea, to more than ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antoine Risso
Giuseppe Antonio Risso (8 April 1777 – 25 August 1845), called Antoine Risso, was a Niçard and naturalist. Risso was born in the city of Nice in the Duchy of Savoy, and studied under Giovanni Battista Balbis. He published ' (1810), ' (1826) and ' (1818–1822). Risso's dolphin was named after him. He is denoted by the author abbreviation Risso when citing a botanical name; the same abbreviation is used for zoological names. Genera and species named after him * ''Rissoa'' : a genus of gastropods * '' Rissoella'' : a genus of gastropod * '' Rissoella'' : a genus of red algae * ''Electrona risso'' : a lanternfish *''Polyacanthonotus rissoanus'' : smallmouth spiny eel Genera and species named by him He named 549 marine genera and species. IPNI The International Plant Names Index (IPNI) describes itself as "a database of the names and associated basic bibliographical details of seed plants, ferns and lycophytes." Coverage of plant names is best at the rank of species and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subclass (taxonomy)
In biological classification, class ( la, classis) is a taxonomic rank, as well as a taxonomic unit, a taxon, in that rank. It is a group of related taxonomic orders. Other well-known ranks in descending order of size are life, domain, kingdom, phylum, order, family, genus, and species, with class fitting between phylum and order. History The class as a distinct rank of biological classification having its own distinctive name (and not just called a ''top-level genus'' ''(genus summum)'') was first introduced by the French botanist Joseph Pitton de Tournefort in his classification of plants that appeared in his ''Eléments de botanique'', 1694. Insofar as a general definition of a class is available, it has historically been conceived as embracing taxa that combine a distinct ''grade'' of organization—i.e. a 'level of complexity', measured in terms of how differentiated their organ systems are into distinct regions or sub-organs—with a distinct ''type'' of construction, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William John Swainson
William John Swainson FLS, FRS (8 October 1789 – 6 December 1855), was an English ornithologist, malacologist, conchologist, entomologist and artist. Life Swainson was born in Dover Place, St Mary Newington, London, the eldest son of John Timothy Swainson the Second (1756–1824), an original fellow of the Linnean Society. He was cousin of the amateur botanist Isaac Swainson.Etymologisches Worterbuch der botanischen Pflanzennamen by H. Genaust. Review by Paul A. Fryxell ''Taxon'', Vol. 38(2), 245–246 (1989). His father's family originated in Lancashire, and both grandfather and father held high posts in Her Majesty's Customs, the father becoming Collector at Liverpool. William, whose formal education was curtailed because of an impediment in his speech, joined the Liverpool Customs as a junior clerk at the age of 14."William Swainson F.R.S, F.L.S., Naturalist and Artist: Diaries 1808–1838: Sicily, Malta, Greece, Italy and Brazil." G .M. Swainson, Palmerston, NZ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
