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Heliacus areola
(Gmelin, 1791)
 
Heliacus areola
Maximum size:  15 mm shell diameter (Severns, 2000).

Identification:  The shells of this species are more strongly inflated than those of most architectonicids. There are four beaded cords per whorl and a relatively narrow umbilicus. It has a terraced operculum.

Natural history:  Shells of Heliacus areola are moderately rare in beach drift. Live animals are occasionally found in shallow rocky habitats in association with zoanthids.

Distribution:  Maui and Oahu: widely distributed in the Indo-Pacific.

Taxonomic notes:  This species is listed in Kay, 1979 as Heliacus variegatus (Gmelin, 1791). It's also illustrated in Severns (2011) on page 398 (mislabeled as Architectonica perspectiva).

Photo:  CP: near McGregor Point, Maui; Oct. 4, 2003(?).

Observations and comments:

Note 1:  ( )
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