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Additional Photos
periphery
brown, 0.6 mm
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Omalogyra japonica (Habe, 1972)
Maximum size: 0.7 mm shell
diameter.
Identification:
This
species
has a tiny, planispiral shell with a smooth periphery.
There are fine axial ribs that vary in development. Some shells are
light brown, others cream with three narrow brown bands.
Natural history:
Shells
of
Omalogyra japonica
are moderately rare in beach drift. Live animals are occasionally found
in shallow rocky habitats. Kay
(1979) states that shells have been found in sand samples to depths of
100 m (328 ft).
Distribution:
Maui, Oahu and Midway (banded form) (also Johnston Atoll): also known from Japan and Fanning
Island.
Taxonomic notes:
There's
a
chance that banded and brown forms might be different species
but there doesn't seem to be any morphological difference between the
shells.
Photo: CP:
composite photo, same shell; 0.7 mm in diameter; banded: beach drift,
Mokuleia Bay,
Maui;
fall, 1985.
Observations and comments:
Note
1: ( )
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