|
Coelotrochus Gracilis
''Coelotrochus'' is a genus of small sea snails, marine gastropod mollusks in the family Trochidae, the top snails. Bouchet, P. (2010). Coelotrochus P. Fischer, 1879. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=512304 on 2012-06-20 Description The false umbilicus is very deep and narrow, penetrating deeper than the columella, which is inserted upon its edge, not in the centre of the axis. Distribution This marine genus is endemic to New Zealand. Species Species within the genus ''Coelotrochus'' include: * † '' Coelotrochus avarus'' (Suter, 1917) * † '' Coelotrochus bibaphus'' (Bartrum & Powell, 1928) * † '' Coelotrochus browni'' (C. A. Fleming, 1943) * '' Coelotrochus carinatus'' (B. A. Marshall, 1998) * '' Coelotrochus carmesinus'' (Webster, 1908) * '' Coelotrochus chathamensis'' (Hutton, 1873) * '' Coelotrochus davegibbsi'' (B. A. Marshall, 1998) * † '' Coelotrochus fossilis'' (Finlay, 1926) * † '' C ... [...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] |
Coelotrochus Carmesinus
''Coelotrochus carmesinus'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Rosenberg, G. (2012). ''Coelotrochus carmesinus'' (Webster, 1908). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=598198 on 2012-11-23 Description The height of the shell attains 5 mm, its diameter 8 mm. The small, shining, crimson, depressed shell has a trochiform shape. It is umbilicated, spirally striated, an rather solid. The sculpture of the post -embryonic whorls consist of fine somewhat unequal spiral striae, with linear interspaces. These number about 20 on the upper surface of the body whorl, and a similar number on the base. A narrow smooth band winds round the peripheral angle. The umbilicus is margined by a broadly rounded funicle. The colour of the shell is pale pink, with radiate crimson streaks on the second and third whorls. The succeeding whorls are crimson with occasiona ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coelotrochus
''Coelotrochus'' is a genus of small sea snails, marine gastropod mollusks in the family Trochidae, the top snails. Bouchet, P. (2010). Coelotrochus P. Fischer, 1879. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=512304 on 2012-06-20 Description The false umbilicus is very deep and narrow, penetrating deeper than the columella, which is inserted upon its edge, not in the centre of the axis. Distribution This marine genus is endemic to New Zealand. Species Species within the genus ''Coelotrochus'' include: * † '' Coelotrochus avarus'' (Suter, 1917) * † '' Coelotrochus bibaphus'' (Bartrum & Powell, 1928) * † '' Coelotrochus browni'' (C. A. Fleming, 1943) * '' Coelotrochus carinatus'' (B. A. Marshall, 1998) * '' Coelotrochus carmesinus'' (Webster, 1908) * '' Coelotrochus chathamensis'' (Hutton, 1873) * '' Coelotrochus davegibbsi'' (B. A. Marshall, 1998) * † '' Coelotrochus fossilis'' (Finlay, 1926) * † '' Co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coelotrochus Viridis
''Coelotrochus viridis'', common name the green top shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Rosenberg, G. (2012). ''Coelotrochus viridis'' (Gmelin, 1791). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=598205 on 2012-11-23 Description The length of the shell varies between 15 mm and 25 mm. The solid shell has a conical shape with nearly straight outlines and is false-umbilicate. The sculpture of the upper surface consists of 5 series to each whorl of rounded bead-like granules, between which are visible numerous very minute spiral striae, in the interstices of which oblique incremental striae are prominently shown under a lens. The base of the shell is concentrically striate with unequal striae that disappear toward the outer edge. The colour of the shell is dull grey, whitish, or greenish. The apex is acute. The protoconch is very small, with 1½ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coelotrochus Tiaratus
''Coelotrochus tiaratus'', whose common names include tiara top shell, brown top shell, mititi, and mitimiti is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Rosenberg, G. (2012). ''Coelotrochus tiaratus'' (Quoy & Gaimard, 1834). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=598204 on 2012-11-23 Description The shell grows to a length of 18 mm. The depressed conical shell is very deeply false-umbilicate and rather thin. The spire has convex outlines;. The apex is acute, and lemon yellow when eroded. The 5 to 5½ whorls are nearly planulate, but the upper margin of each whorl is prominent and projecting beyond the periphery of the preceding. The body whorl is carinated at the periphery. The sculpture above consists of spiral lirae, about 5 to 8 on each whorl, cut into close oblique beads. The interstices are obliquely finely striate, one or two of the broader ones usuall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coelotrochus Rex
''Coleotrochus rex'' is a species of small sea snail, a marine 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. T ... mollusk in the family Trochidae, the top snails.Rosenberg, G. (2014). Coelotrochus rex (B. A. Marshall, 1998). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=598203 on 2014-06-05 Description The shells of most species of sea snails are spirally coiled. The height of the shell attains 15 mm, its diameter 18 mm. Distribution This marine species is endemic to New Zealand and occurs off Three Kings Islands. References Image of the holotype of the species, N.Z. government site* Spencer, H.G.; Marshall, B.A.; Maxwell, P.A.; Grant-Mackie, J.A.; Stilwell, J.D.; Willan, R.C.; Campbell, H.J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coelotrochus Polychromus
''Coelotrochus polychromus'' is a species of sea snail, a marine 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. T ... mollusk in the family Trochidae, the top snails.MolluscaBase (2019). MolluscaBase. Coelotrochus polychromus (B. A. Marshall, 1998). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=598202 on 2019-11-18 Description The width of the shell attains 5.9 mm. Distribution This marine species is endemic to New Zealand and occurs off Three Kings Islands. References * Marshall B.A. 1998. ''A review of the Recent Trochini of New Zealand (Mollusca: Gastropoda: Trochidae)''. Molluscan Research 19(1): 73-106 * Spencer, H.G.; Marshall, B.A.; Maxwell, P.A.; Grant-Mackie, J.A.; Stilwell, J.D.; Willa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coelotrochus Oppressus
''Coelotrochus oppressus'', common name the shouldered top shell, is a species of very small sea snail, a marine gastropod mollusc in the family Trochidae, the top snails or top shells.Rosenberg, G. (2012). Coelotrochus oppressus. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=598201 on 2012-06-21 Description The length of the shell attains 5.5 mm, its diameter 6 mm. The small, somewhat solid shell has a conical shape. It is lustreless, with a false umbilicus. The sculpture of the entire surface is closely finely spirally striate. The striae of the base become coarser toward the axis. The colour of the shell is dark olive-brown or greenish, minutely tessellated all over with a slightly darker shade of the same hue. The small protoconch is conical with two slightly spirally striated whorls. The teleoconch consists of five whorls, those of the spire keeled above the middle. The body whorl is biangular. The base ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coelotrochus Gracilis
''Coelotrochus'' is a genus of small sea snails, marine gastropod mollusks in the family Trochidae, the top snails. Bouchet, P. (2010). Coelotrochus P. Fischer, 1879. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=512304 on 2012-06-20 Description The false umbilicus is very deep and narrow, penetrating deeper than the columella, which is inserted upon its edge, not in the centre of the axis. Distribution This marine genus is endemic to New Zealand. Species Species within the genus ''Coelotrochus'' include: * † '' Coelotrochus avarus'' (Suter, 1917) * † '' Coelotrochus bibaphus'' (Bartrum & Powell, 1928) * † '' Coelotrochus browni'' (C. A. Fleming, 1943) * '' Coelotrochus carinatus'' (B. A. Marshall, 1998) * '' Coelotrochus carmesinus'' (Webster, 1908) * '' Coelotrochus chathamensis'' (Hutton, 1873) * '' Coelotrochus davegibbsi'' (B. A. Marshall, 1998) * † '' Coelotrochus fossilis'' (Finlay, 1926) * † '' C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coelotrochus Fossilis
''Coelotrochus'' is a genus of small sea snails, marine gastropod mollusks in the family Trochidae, the top snails. Bouchet, P. (2010). Coelotrochus P. Fischer, 1879. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=512304 on 2012-06-20 Description The false umbilicus is very deep and narrow, penetrating deeper than the columella, which is inserted upon its edge, not in the centre of the axis. Distribution This marine genus is endemic to New Zealand. Species Species within the genus ''Coelotrochus'' include: * † ''Coelotrochus avarus'' (Suter, 1917) * † ''Coelotrochus bibaphus'' (Bartrum & Powell, 1928) * † ''Coelotrochus browni'' (C. A. Fleming, 1943) * '' Coelotrochus carinatus'' (B. A. Marshall, 1998) * '' Coelotrochus carmesinus'' (Webster, 1908) * '' Coelotrochus chathamensis'' (Hutton, 1873) * '' Coelotrochus davegibbsi'' (B. A. Marshall, 1998) * † '' Coelotrochus fossilis'' (Finlay, 1926) * † ''Coelo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coelotrochus Davegibbsi
''Coelotrochus davegibbsi'' is a species of sea snail, a marine 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. T ... mollusk in the family Trochidae, the top snails. Description The width of the shell attains 6.5 mm. Distribution This marine species is endemic to New Zealand and occurs off Three Kings Islands. References * Marshall B.A. 1998. ''A review of the Recent Trochini of New Zealand (Mollusca: Gastropoda: Trochidae).'' Molluscan Research 19(1): 73-106 * Spencer, H.G.; Marshall, B.A.; Maxwell, P.A.; Grant-Mackie, J.A.; Stilwell, J.D.; Willan, R.C.; Campbell, H.J.; Crampton, J.S.; Henderson, R.A.; Bradshaw, M.A.; Waterhouse, J.B.; Pojeta, J. Jr (2009). ''Phylum Mollusca: chitons, clams, tusk shells, snails, squids, and kin'', in: Gordon, D.P. (Ed.) (20 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coelotrochus Chathamensis
''Coelotrochus chathamensis'' is a species of small sea snail, a marine gastropod mollusc in the family Trochidae, the top snails or top shells. Description The length of the shell varies between eight mm and 10 mm. The small shell has a conical shape, the sides are straight or slightly convex.. The angle of the spire is 70°. The five, rarely six, whorls are flat with an elevated upper edge, and, together with the base, spirally striated. The pointed protoconch is regularly conical, and consists of about two whorls. These are not marked off from the succeeding whorl. This one is, smooth, with two or three spiral red bands. The last two whorls increase rapidly in size. They are flat to slightly convex above, concave below before reaching the strong and prominent cingulum. The body whorl has a distinct peripheric keel. The sculpture consists of five to six low spiral threads, the lower and upper margins much elevated, especially the former. They are crossed by broad nod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
