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periphery
 



 
Orbitestella regina
Kay, 1979
 
Orbitestella regina: shell
Maximum size:  2 mm shell diameter (Kay, 1979).

Identification:  The shell of this species has two prominent cords on its periphery that are nearly equal in size. The cords are crossed by relatively course, angled axial ribs.

Natural history:  Shells of Orbitestella regina are moderately common in beach drift. Live animals are occasionally found in shallow rocky habitats.

Distribution:  Big Island, Maui, Oahu, French Frigate Shoals and Midway.

Taxonomic notes:  The species was named for Regina Kawamoto.

Photo:  CP: composite photo, same shell; 0.6 mm in diameter: beach drift, Maalaea Bay, Maui; fall, 1986.

Observations and comments:

Note 1:  ( )
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