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Turbonilla

Turbonilla
live Turbonilla acutissima
Two shells of Turbonilla tenuicula
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Superfamily: Pyramidelloidea
Family: Pyramidellidae
Subfamily: Turbonillinae
Genus: Turbonilla
Risso, 1826
Type species
† Turbonilla costulata
Risso, 1826
Synonyms[1]
  • Amamimormula Kuroda, 1928
  • Chemnitzia d'Orbigny, 1839
  • Cyrtoturbonilla F. Nordsieck, 1972
  • Dunkeria Carpenter, 1857
  • Lancea Pease, 1868
  • Lancella Dall & Bartsch, 1904 (unnecessary replacement name for Lancea Pease, 1868, by Dall & Bartsch erroneously believed to be a junior homonym )
  • Odostomia (Turbonilla) Risso, 1826
  • Paramormula Nomura, 1939
  • Pyrgolampros Sacco, 1892
  • Turbonilla (Chemnitzia) d'Orbigny, 1839
  • Turbonilla (Cylindriturbonilla) Nordsieck, 1972 · accepted, alternate representation
  • Turbonilla (Cyrtoturbonilla) Nordsieck, 1972· accepted, alternate representation
  • Turbonilla (Graciliturbonilla) Nordsieck, 1972· accepted, alternate representation
  • Turbonilla (Turbonilla) Risso, 1826
  • Variturbonilla F. Nordsieck, 1972

Turbonilla is a large genus of ectoparasitic sea snails, marine gastropod molluscs in the family Pyramidellidae, the pyrams and their allies.[1][2][3]

This genus in its present state is not monophyletic. Many species may end up reclassified in other genera. (personal communication by Philippe Bouchet, chief editor of the Mollusca in WoRMS).[4]

General description

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The generally slender, bluish-white to milk-white, semitranslucent shell is more or less elongated and has a cylindro-conic shape.

The apex is sinistral. The reversed, flattened or projecting protoconch consists of 1½ to 3 whorls that are oblique or tilted from transverse to the axis.

The teleoconch contains many planulate or more or less convex whorls. These are sometimes shouldered and are generally ornamented with less prominent longitudinal ribs ( = costulate).

The intercostal spaces are smooth or crossed bv more or less distinct, incised, sometimes raised, spiral lines. The spiral lines often also appear on the base of the shell, which varies from short, little rounded (the body whorl is subangulated at the periphery), to elongate and well-rounded.

The shape of the aperture varies from subquadrate with a straight columellar lip, to an elongate-ovate shape, well-rounded and produced below, with a curved columellar lip. The peritreme is generally discontinuous, rarely continuous.

The outer lip is always thin and entire. The inner lip is more or less thickened and reflected, often with a plication or fold that is not always visible externally.

The columella is vertical, not plicate. The columellar fold is single, varying in strength. The horny operculum is subspiral. The shell is usually smaller than in Pyramidella and larger than in Odostomia.

The animal has wide tentacles, an elongated, flattened mentum, usually bilobed in front. The foot is large and anteriorly auriculated.[5][6][7]

Species

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Species within the genus Turbonilla include:[1]

A

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B

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C

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D-E

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F-G

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H-J

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K-L

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M

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N-O

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P

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Q-R

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S

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T

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U-Z

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Synonyms

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The following species were brought into synonymy:[1]

List of synonyms

Taxa inquerenda

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  • Turbonilla abbreviata W. H. Turton, 1932
  • Turbonilla admirabilis W. H. Turton, 1932
  • Turbonilla becki W. H. Turton, 1932
  • Turbonilla bifasciata A. Adams, 1861
  • Turbonilla columna W. H. Turton, 1932
  • Turbonilla distincta W. H. Turton, 1932
  • Turbonilla erecta W. H. Turton, 1932
  • Turbonilla intersecta W. H. Turton, 1932
  • Turbonilla liratula W. H. Turton, 1932
  • Turbonilla multistriata W. H. Turton, 1932
  • Turbonilla retusa W. H. Turton, 1932
  • Turbonilla perexilis W. H. Turton, 1932
  • Turbonilla perminima W. H. Turton, 1932
  • Turbonilla producta W. H. Turton, 1932
  • Turbonilla rietensis W. H. Turton, 1932
  • Turbonilla rufanensis W. H. Turton, 1932
  • Turbonilla subcancellata W. H. Turton, 1932
  • Turbonilla subconica W. H. Turton, 1932
  • Turbonilla subglobosa W. H. Turton, 1932

References

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  1. ^ Jump up to: a b c d Bouchet, P.; Gofas, S. (2011). Turbonilla Risso, 1826. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=138421 on 2011-11-10
  2. ^ Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 180-213
  3. ^ Spencer, H.; Marshall. B. (2009). All Mollusca except Opisthobranchia. In: Gordon, D. (Ed.) (2009). New Zealand Inventory of Biodiversity. Volume One: Kingdom Animalia. 584 pp
  4. ^ WoRMS : † Turbonilla semicostata Lozouet & Maestrati, 1982
  5. ^ Dall & Bartsch, A Monograph of West American Pyramidellid Mollusks, United States National Museum Bulletin 68, p. 19: 1909
  6. ^ G.W. Tryon, Manual of Conchology vol. VIII p. 317
  7. ^ Bush, Katharine Jeannette (1899). "Descriptions of New Species of Turbonilla of the Western Atlantic Fauna, with Notes on Those Previously Known" (PDF). Proceedings of the Academy of Natural Sciences of Philadelphia. 51 (1): 145–177. JSTOR 4062489.
  8. ^ P. Bartsch (1915), Report on the Turton collection of South African marine mollusks, with additional notes on other South African shells contained in the United States National Museum; Bulletin of the United States National Museum v. 91 (1915)
  9. ^ WMSD: Turbonilla ista
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