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"Orinella is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.Rosenberg, G. (2011). Orinella Dall & Bartsch, 1904. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id;=581274 on 2011-10-26 Species Species within the genus Orinella include: * Orinella africana (Bartsch, 1915) * Orinella alfredensis (Bartsch, 1915) * Orinella ebarana (Yokoyama, 1927) * Orinella pulchella (A. Adams, 1854) The following species were brought into synonymy: * Orinella vanhyningi Bartsch, 1944 accepted as Syrnola vanhyningi (Bartsch, 1944) References External links * To World Register of Marine Species Category:Pyramidellidae Category:Monotypic gastropod genera "
"Peristichia is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.WoRMS (2010). Peristichia. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id;=415795 on 31 January 2012 Taxonomy In his original paper, Dall proposed Peristichia as a genus of dubious affinities and placed it later in the family Pyramidellidae. Paul Bartsch, his collaborator, later thought it was a subgenus of Turbonilla.P. Bartsch (1904), Proc. Biol. Soc. Washington, vol. 17. p. 9 Johannes Thiele does not even mention this genus in his Handbuch der Systematischen Weichtierkunde. (1929). Wilhelm August Wenz in his Handbuch der Paläozoologie, Band 6, Gastropoda, also thought it was probably a subgenus of Turbonilla, but added a question mark. However, a close examination shows that it belongs in the family Pyramidellidae, close to Tryptichus Mörch, 1875, differing from it only in having one (instead of two) basal entral spiral cords and having no columellar fold. Species Species within the genus Peristichia include: * Peristichia agria Dall, 1889 * Peristichia bathyraphe (Sowerby I, 1901) * Peristichia hermosa (Lowe, 1935) * Peristichia lepta Pimenta, Santos & Absalao, 2008 * Peristichia pedroana (Dall & Bartsch, 1909) * Peristichia pliocena (Bartsch, 1955) * Peristichia toreta Dall, 1889 References External links * To ITIS * To World Register of Marine Species Category:Pyramidellidae "
"Petitilla is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.WoRMS (2010). Petitilla Wise, 1997. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id;=415798 on 2011-10-26 Species Species within the genus Petitilla include: * Petitilla crosseana (Dall, 1885) References * Wise, J. B. 1997. Petitilla, new name for Petitella Wise,1996, a preoccupied name (Mollusca: Gastropoda: Pyramidellidae).The Nautilus 110(2): 76. External links * To ITIS * To World Register of Marine Species Category:Pyramidellidae Category:Monotypic gastropod genera "