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Heliacus implexus
(Mighels, 1845)
 
Heliacus implexus: shell
Maximum size:  10 mm shell diameter (Kay, 1979).

Identification:  This species has flat, cream shells irregularly blotched with brown. They may be distinguished from the shells of Heliacus sterkii by their lighter color, less numerous marginal brown spots and the presence of two cords on the margin.

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

Distribution:  Maui, Oahu, French Frigate Shoals and Midway: also known from Johnston Island

Taxonomic notes:  It's probably listed in Tinker, 1958 as Torinia sp.

Photo:  CP: composite photo, same shell; 4.5 mm in diameter: beach drift, Maalaea Bay, Maui; fall, 1979.

Observations and comments:

Note 1:  ( )
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