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Odostomella rosa
(Pilsbry, 1918)
 
Odostomella rosa
Maximum size:  1.7 mm shell length.

Identification:  The shell of this species is ovate with prominent axial ribs. It has four whorls when mature and is bright violet when unworn. The axial ribs increase in size abruptly at the transition between the protoconch and teleoconch. That trait and its color distinguish it from Herviera gliriella and Herviera sp. #2. The animal is cream.

Natural history:  Shells of Odostomella rosa are moderately rare in beach drift. Live animals are found occasionally in shallow rocky habitats.

Distribution:  Maui, French Frigate Shoals and Midway.

Taxonomic notes:  The description of  H. gliriella in Kay, 1979 suggests that she may not have been distinguishing it from Odostomella rosa and Herviera sp. #2.

Photo:  CP: Hekili Point, Maui; Sept. 9, 2002.

Observations and comments:

Note 1:  ( )
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