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Additional Photos
shell interior
underside
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Williamia radiata (Pease,
1861)
Maximum size: 5.5 mm shell
length.
Identification:
This
species has a smooth, translucent shell with radiating brown bands. The living animal is cream, densely flecked with orange.
Natural history:
Shells
of Williamia radiata
are moderately common in beach drift. Live animals are occasionally
seen under rocks in tide pools and subtidally at rocky sites. According
to Kay (1979) shells are found in sand samples to depths of 30 m (98
ft).
Distribution:
Maui, Oahu, French Frigate Shoals, Pearl & Hermes Reef and Midway (also Johnston Atoll).
Taxonomic notes: There's some chance that there are more than one species lumped under the name.
Photo: CP:
composite photo, two shells; largest 5
mm: beach drift, Mokuleia Bay, Maui; fall,
1983.
Observations and comments:
Note
1: ( )
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