The Nautilus Log
Oliva circinata

Oliva circinata

NameOliva circinata
Scientific NameOliva circinata
Common NameCircinate Olive
FamilyOlividae
GenusOliva
Speciescircinata
Geographic DistributionIndo-Pacific region, including areas such as the Philippines, Indonesia, and other parts of Southeast Asia.
Habitatintertidal
Average Size (mm)30-60 mm
Identifying FeaturesElongated, cylindrical shape; smooth, glossy surface; distinctive reticulated or zigzag brown and white pattern; a darker, triangular or blotchy band below the suture; moderately pointed spire; long, narrow aperture; and characteristic columellar folds (though not fully visible in the image). The purplish-brown wash at the base is also a key feature.
Raritycommon
Author CitationMarrat, 1871

Description

The shell is elongated, cylindrical, and smooth with a moderately pointed spire. It features intricate brown and white reticulated patterns over a lighter background, with a distinct band of darker markings below the suture. The aperture is long and narrow, and the columella typically shows several folds, though not clearly visible in this view.

Related Seashells