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Herviera gliriella
(Melvill & Standen, 1896)
 
Herviera gliriella: shell
Maximum size:  2.5 mm shell length.

Identification:  The shell of this species is ovate with prominent axial ribs. It has five whorls when mature and the apex and base are dark brown, contrasting with the light brown of the remainder of the shell. The axial ribs increase in size gradually at the transition between the protoconch and teleoconch. That trait and its color distinguish it from Herviera sp. #1. The two-toned color and fewer axial ribs distinguish it from Herviera sp. #2. The animal is cream with white flecks.

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

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

Taxonomic notes:  The description of this species in Kay, 1979 suggests that she was not distinguishing H. gliriella from H. sp. #1 and H. sp. #2. Her photo is clearly of the above species but type material will probably need to be checked to confirm which is the "real" H. gliriella. The shell illustrated as H. gliriella in Severns, 2011 is this species.

Photo:  CP: composite photo, two shells; largest 2.5 mm: sand sample, Maui; 1991.

Observations and comments:

Note 1:  ( )
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