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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, Quirk & Wolfe, 1974, Severns, 2000 and Tinker, 1958 as Heliacus variegatus (Gmelin, 1791). It's listed in Morris, 1974 as Torinia variegata. 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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