Sphaerocylichna incommoda

Sphaerocylichna incommoda
Shell of Sphaerocylichna incommoda (holotype)
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Cephalaspidea
Family:	Cylichnidae
Genus:	Sphaerocylichna
Species:	S. incommoda
Binomial name
Sphaerocylichna incommoda (E. A. Smith, 1891)
Synonyms [1]
Austrocylichna lagenaBurn, 1978 Bulla incommodaE. A. Smith, 1891 Cylichna bulloidesDell, 1956

Sphaerocylichna incommoda is a species of deepsea snail or bubble snail, a marine opisthobranch gastropod mollusk in the family Cylichnidae, the canoe bubbles or chalice bubble snails. ^[1]

Description

(Original description in Latin) The shell is small, narrowly umbilicated, ovate, white, and glossy. It is sculptured above and below with a few transverse striae and striated with growth lines. The apex is very narrowly perforate. The aperture is narrow, somewhat dilated below, and produced above beyond the apex. The columella is slightly twisted, curved below, reflected, and expanded. ^[2]

Distribution

This marine species is endemic to Australia and occurs off New South Wales, South Australia and Victoria.

References

1. WoRMS : Sphaerocylichna incommoda; accessed : 13 October 2010
2. Smith, E.A. (1891). "Descriptions of new species of shells from the "Challenger" expedition". Proceedings of the Zoological Society of London. 1891: 441. Retrieved 26 April 2025. This article incorporates text from this source, which is in the public domain .

• Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN   0-00-216906-1
• Burn R. (2006) A checklist and bibliography of the Opisthobranchia (Mollusca: Gastropoda) of Victoria and the Bass Strait area, south-eastern Australia. Museum Victoria Science Reports 10:1–42