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.WoRMS : Sphaerocylichna incommoda; accessed : 13 October 2010
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.
Distribution This marine species is endemic to Australia and occurs off New South Wales, South Australia and Victoria.
References
Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 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