Besla

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Not to be confused with the Black Entertainment and Sports Lawyers Association (BESLA).
Besla
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Heterobranchia
clade Euthyneura
clade Panpulmonata
Superfamily: Pyramidelloidea
Family: Pyramidellidae
Subfamily: Odostomiinae
Tribe: Chrysallidini
Genus: Besla
Dall & Bartsch, 1904[1]
Type species
Odostomia convexa Carpenter, 1857
Species

See text.

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). [2]

This genus is now considered a synonym of Parthenina Bucquoy, Dautzenberg & Dollfus, 1883. The synonymy with Besla Dall & Bartsch, 1904 proposed by Micali et al. (2012) is debatable. The type species of Besla has a protoconch axis at 90º with that of teleoconch ("type A protoconch") whereas that of Parthenina is tilted nearly 180º ("type C"); this important character suggests that they are unrelated and that their teleoconch sculpture may be convergent . [3]

Life habits

Very little is known about the biology of the members of this genus. As is true of most members of the Pyramidellidae sensu lato, they are most likely to be ectoparasites.

Species

There are twelve known species within the genus Besla, these include:

References

  1. ↑ Dall W. H. & Bartsch P. (1904). "Synopsis of the genera, subgenera and sections of the family Pyramidellidae.". Proceedings of the Biological Society of Washington 17: 1–16.  page 10.
  2. ↑ 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
  3. ↑ 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.

Further reading

  • Carpenter, P. P. (1857). Catalogue of the collection of Mazatlan shells in the British Museum collected by Frederik Reigen. London. pp. 552 pp. 

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