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Besla
''Besla'' is a small genus of miniature sea snails, pyramidellid gastropod mollusks in the family Pyramidellidae within the tribe Chrysallidini (sensu taxonomy by Bouchet & Roctroi, 2005). 〔 Gofas, S.; Bouchet, P. (2012). Besla Dall & Bartsch, 1904. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=571798 on 2012-08-27 〕 ==Taxonomy== The synonymy of Parthenina Bucquoy, Dautzenberg & Dollfus, 1883 with Besla Dall & Bartsch, 1904 proposed by Micali et al. (2012) is debatable. The type species of ''Besla'' has a protoconch axis at 90° with that of teleoconch ("type A protoconch") whereas that of ''Parthenina'' is tilted nearly 180° ("type C"); this important character suggests that they are unrelated and that their teleoconch sculpture may be convergent . 〔 Micali P., Nofroni I. & Perna E. (2012) Parthenina alesii n. sp. from Eastern Mediterranean, and notes on Parthenina dantarti (Peñas & Rolán in Peñas, Rolán & Ballesteros, 2008) (Gastropoda: Heterobranchia: Pyramidellidae). Bollettino Malacologico 48(1): 69-72. 〕
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