Gemmuloborsonia
| Gemmuloborsonia | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Clade: | Caenogastropoda |
| Clade: | Hypsogastropoda |
| Clade: | Neogastropoda |
| Superfamily: | Conoidea |
| Family: | Clavatulidae |
| Genus: | Gemmuloborsonia Shuto, 1989 |
| Type species | |
| † Gemmuloborsonia fierstinei Shuto, 1989 | |
Gemmuloborsonia is a genus of sea snails, marine gastropod mollusks in the family Clavatulidae.[1][2]
Description
This genus is provisionally included in the family Clavatulidae as the characters of the shell and the radula of this genus resemble more the characters of this family than those of the family Horaiclavidae. However, it differs from the other genera in this family by its weak columellar pleats and the multispiral protoconch in the Recent specie. However the extinct species type has a paucispiral, globose and almost smooth protoconch. This must then be considered an apomorphic character state.
The fusiform shell is moderately small. The spire is relatively high and the base is contracted. The spire shows a peripheral cord with gemmules. The anal sinus is deep and its crest reaches the peripheral cord. The distinct columellar pleat is blunt.
Distribution
Originally only known as a fossil from the Upper Miocene-Lower Pleistocene of the Tethys Ocean and found in the Philippines, bathyal Recent species from New Caledonia, Indonesia, the Mozambique Channel, and the Philippines have been discovered. The genus appears to be rather widely distributed through the Indo-Pacific
Species
Species within the genus Gemmuloborsonia include:
- Gemmuloborsonia clandestina Puillandre, Cruaud & Kantor, 2009[3]
- Gemmuloborsonia colorata (Sysoev & Bouchet, 2001)[4]
- Gemmuloborsonia didyma Sysoev & Bouchet, 1996[5]
- † Gemmuloborsonia fierstinei Shuto, 1989
- Gemmuloborsonia jarrigei Sysoev & Bouchet, 2001[6]
- Gemmuloborsonia karubar Sysoev & Bouchet, 1996[7]
- Gemmuloborsonia moosai Sysoev & Bouchet, 1996[8]
- Gemmuloborsonia neocaledonica Sysoev & Bouchet, 1996[9]
References
- ↑ Gemmuloborsonia Shuto, 1989. Retrieved through: World Register of Marine Species on 14 April 2010.
- ↑ P. Bouchet; Yu. I. Kantor; A. Sysoev; N. Puillandre (2011). "A new operational classification of the Conoidea (Gastropoda)". Journal of Molluscan Studies. 77 (3): 273–308. doi:10.1093/mollus/eyr017.
- ↑ Gemmuloborsonia clandestina Puillandre, Cruaud & Kantor, 2009. Retrieved through: World Register of Marine Species on 14 April 2010.
- ↑ Gemmuloborsonia colorata (Sysoev & Bouchet, 2001). Retrieved through: World Register of Marine Species on 26 August 2010.
- ↑ Gemmuloborsonia didyma Sysoev & Bouchet, 1996. Retrieved through: World Register of Marine Species on 14 April 2010.
- ↑ Gemmuloborsonia jarrigei Sysoev & Bouchet, 2001. Retrieved through: World Register of Marine Species on 14 April 2010.
- ↑ Gemmuloborsonia karubar Sysoev & Bouchet, 1996. Retrieved through: World Register of Marine Species on 14 April 2010.
- ↑ Gemmuloborsonia moosai Sysoev & Bouchet, 1996. Retrieved through: World Register of Marine Species on 14 April 2010.
- ↑ Gemmuloborsonia neocaledonica Sysoev & Bouchet, 1996. Retrieved through: World Register of Marine Species on 14 April 2010.
- Shuto, Tsugio. "Gemmuloborsonia, a new genus of the family Turridae (Gastropoda) from the Plio-Pleistocene Cabatuan Formation, northwest Luzon." Nihon Koseibutsu Gakkai hokoku, kiji 153 (1989): 48-54
- Puillandre N., Cruaud C. & Kantor Y.I. (2010). Cryptic species in Gemmuloborsonia (Gastropoda: Conoidea). Journal of Molluscan Studies, 76(1):11-23
External links
- Sysoev, Alexander, and Philippe Bouchet. "Taxonomic reevaluation of Gemmuloborsonia Shuto, 1989 (Gastropoda: Conoidea), with a description of new Recent deep-water species." Journal of Molluscan Studies 62.1 (1996): 75-87
- Puillandre, N., C. Cruaud, and Yu I. Kantor. "Cryptic species in Gemmuloborsonia (Gastropoda: Conoidea)." Journal of Molluscan Studies 76.1 (2010): 11-23.