Cylindrobulla Explained

Cylindrobulla is a genus of sea snails or bubble snails, marine gastropod mollusks in the clade Sacoglossa.

Cylindrobulla is the type genus of the family Cylindrobullidae and it is the only genus in the family.

Taxonomy

The suborder Cylindrobulloidea used to be recognized as monogeneric suborder; in other words there was only one family in the suborder, the family Cylindrobullidae, and only one genus Cylindrobulla.

1996 taxonomy

It was treated by Jensen (1996)^[1] as a sister group of Sacoglossa and placed it in the new order Cylindrobullacea.

1998 taxonomy

Mikkelsen (1998) has argued that the genus Cylindrobulla actually belongs in Oxynoacea within shelled Sacoglossa. This change in taxonomy was suggested on the basis of the similarity in many characteristics: digestive, sexual, pallial (= concerning the mantle), and the nervous system.^[2]

2005 taxonomy

According to the taxonomy by Bouchet & Rocroi (2005), is the Cylindrobullidae the only family in the superfamily Cylindrobulloidea and Cylindrobulloidea is the only superfamily within the group Cylindrobullida in the informal group Opisthobranchia.

According to the taxonomy of the Gastropoda by Bouchet & Rocroi (2005) the family Cylindrobullidae has no subfamilies.

2010 taxonomy

Molecular phylogeny analysis by Maeda et al. (2010)^[3] have confirmed placement of Cylindrobulla within Sacoglossa.^[3]

Genera

Species within the genus Cylindrobulla include:

• Cylindrobulla beauii P. Fischer, 1857 - the type species of the genus Cylindrobulla
• Cylindrobulla gigas Mikkelsen, 1998^[2]
• Cylindrobulla phuketi Jensen, 1990^[4]
• Cylindrobulla sculpta G. Nevill & H. Nevill, 1869^[5]
• Cylindrobulla turtoni Bartsch, 1915^[6]
• Cylindrobulla xishaensis Lin, 1978^[7]

Synonyms:

• Cylindrobulla californica Hamatani, 1971 is a synonym for Ascobulla californica (Hamatani, 1971)
• Cylindrobulla fragilis (Jeffreys, 1856) is a synonym for Ascobulla fragilis (Jeffreys, 1856)
• Cylindrobulla japonica Hamatani, 1969 is a synonym for Ascobulla japonica (Hamatani, 1969)

See also

• Ascobulla - species in this genus looks externally the same, but they differ in internal anatomy. Ascobulla belongs to Volvatellidae.

External links

• http://www.seaslugforum.net/showall/ascospp

Notes and References

1. Jensen, K.R.. Phylogenetic Systematics and classification of the sacoglossa (Mollusca, Gastropoda, Opisthobranchia). Philosophical Transactions of the Royal Society. 1996. 351. 91–122. 10.1098/rstb.1996.0006.
2. Paula M. Mikkelsen. Cylindrobulla and Ascobulla in the western Atlantic (Gastropoda, Opisthobranchia, Sacoglossa): Systematic review, description of a new species, and phylogenetic reanalysis. Zoologica Scripta. 1998. 27. 1. 49–71. 10.1111/j.1463-6409.1998.tb00428.x.
3. Maeda T., Kajita T., Maruyama T. & Hirano Y. (2010). "Molecular Phylogeny of the Sacoglossa, With a Discussion of Gain and Loss of Kleptoplasty in the Evolution of the Group". Biological Bulletin 219(1): 17-26. abstract .
4. Bouchet, P. (2010). Cylindrobulla phuketi Jensen, 1990. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=536482 on 2011-01-09
5. Bouchet, P. (2010). Cylindrobulla sculpta G. Nevill & H. Nevill, 1869. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=536472 on 2011-01-09
6. Bouchet, P. (2010). Cylindrobulla turtoni Bartsch, 1915. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=536485 on 2011-01-09
7. Bouchet, P. (2010). Cylindrobulla xishaensis Lin, 1978. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=536484 on 2011-01-09