Besla
| Besla | |
|---|---|
 | |
| Apertural view of the shell of Besla convexa | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Clade: | Heterobranchia |
| Clade: | Euthyneura |
| Order: | Panpulmonata |
| Superfamily: | Pyramidelloidea |
| Family: | Pyramidellidae |
| Genus: | Besla Dall & Bartsch, 1904 |
| Type species | |
| Odostomia convexa Carpenter, 1857 | |
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).[1]
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 .[2]
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:
- Besla alphonsi Saurin, 1959
- Besla annae Saurin, 1959
- Besla arenarum Saurin, 1959
- Besla articulata (Hedley, 1909)
- Besla augusti Saurin, 1959
- Besla bicinctella (Yokoyama, 1927)
- Besla canaensis Saurin, 1959
- Besla convexa (Carpenter, 1857) - type species, as Odostomia (Chrysallida) convexa)
- Besla cossmanni Hornung & Mermod, 1924
- Besla danieli Saurin, 1959
- Besla dheeradiloki Robba, Di Geronimo, Chaimanee, Negri & Sanfilippo, 2003
- Besla excolpa (Bartsch, 1912)
- Besla gabriellae Saurin, 1959
- Besla gautieri Saurin, 1959
- Besla henriettae Saurin, 1959
- Besla insularis (Oliver, 1915)
- Besla joae (Saurin, 1961)
- † Besla lawsi Grant-Mackie & Chapman-Smith, 1971
- Besla mieuina Saurin, 1959
- † Besla otahua Laws, 1950
- Besla ranae (Saurin, 1961)
- Besla reamensis (Saurin, 1961)
- Besla revisa Saurin, 1959
- Besla rossiana Laws, 1941
- Besla subrugata (Powell, 1927)
- Besla tuytrieuensis Saurin, 1959
- Besla vaga Laws, 1941
- Besla waitangiensis Laws, 1941
References
- ↑ 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
- ↑ 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.