Subulina octona

Family

Subulinidae

Species

Subulina octona (Bruguière, 1798)

Common name

Thumbnail awlsnail, Miniature awlsnail

Description

This species measures 14-17 mm high, with 8-9 whorlsWhorls:
Pleural of whorl. A whorl is a complete spiral turn/growth of the shell of a mollusc. The whorls are counted from the apex outwards.
. The shellShell:
A hard, inflexible, calcareous or chitinous structure that vary in size and may either completely encasing the animal, covering some part of it or be internal.
is long and narrow with a small, ovate apertureAperture:
The major opening of a shell that the body of the animal may be retracted.
(mouth). The shellShell:
A hard, inflexible, calcareous or chitinous structure that vary in size and may either completely encasing the animal, covering some part of it or be internal.
of this species is thin, translucentTranslucent:
Allows light to pass through but prevents the ability to see distinct objects.
and glossy. The color ranges from colorless to pale yellow-brown. The body of the animal is pale yellow. This species may be confused with Allopeas gracile; however, Subulina octona is larger and has a truncated columellaColumella:
The central axis of the shell; originates at the shell apex and ends at the umbilicus.
.

Native range

Tropical America

Distribution

Pacific Islands: Hawaii

Central and South America: Mexico

Europe

Asia: Sri Lanka

Caribbean

Ecology

This species have been documented to occur in large numbers wherever it inhabits, and often occur in greenhouses.

References

Almeida and Bessa 2001; Burch 1962; Anderson 2005; Cowie 1997; Cowie et al. 2008; Juricková 2006; Kerney et al. 1979; Naggs et al. 2003; Robinson et al. 2009; Rosenberg and Muratov 2006