Cylindrobulla

Cylindrobulla is a genus of sea snails or bubble snails, marine gastropod mollusks in the clade Sacoglossa.^[1]

Cylindrobulla
A drawing of the shell of Cylindrobulla beauii from its original description by Paul Henri Fischer (1857)
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Heterobranchia clade Euthyneura clade Panpulmonata clade Sacoglossa[1]
Superfamily:	Cylindrobulloidea Thiele, 1931[2]
Family:	Cylindrobullidae Thiele, 1931[2]
Genus:	Cylindrobulla P. Fischer, 1857[3]

Cylindrobulla is the type genus of the family Cylindrobullidae^[4] and it is the only genus in the family.^{[citation needed]}

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)^[5] as a sister group of Sacoglossa and placed it in the new order Cylindrobullacea.

1998 taxonomy

Mikkelsen (1998)^[6] has argued that the genus Cylindrobulla actually belongs in Oxynoacea within shelled Sacoglossa.^[6] 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.^[6]

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.^[4]

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)^[1] have confirmed placement of Cylindrobulla within Sacoglossa.^[1]

Genera

Species within the genus Cylindrobulla include:

• Cylindrobulla beauii P. Fischer, 1857^[3] - the type species of the genus Cylindrobulla
• Cylindrobulla gigas Mikkelsen, 1998^[6]
• Cylindrobulla phuketi Jensen, 1990^[7]
• Cylindrobulla sculpta G. Nevill & H. Nevill, 1869^[8]
• Cylindrobulla turtoni Bartsch, 1915^[9]
• Cylindrobulla xishaensis Lin, 1978^[10]

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.