About Drupa morum Röding, 1798
Drupa morum Röding, 1798 has a thick, globose shell that can grow up to 5cm long. This species has a low spire, a large body whorl, and a flat base that covers the surface of the animal's body as it grows. The shell's columella features three strong, plicate ridges. The outer layer of the shell is white, marked with dark brown nodules, while the interior of the shell is dark violet. The aperture is narrow and bears a conspicuous group of denticles. The shells of this species are often covered with coralline algae. This species occurs in subtropical and tropical regions of the Indo-Pacific. Confirmed recorded locations include Madagascar, Taipei (China), Hong Kong (China), India, Indonesia, Japan, Philippines, Clipperton Island, Australia, Easter Island, French Polynesia, Guam, Hawaii, New Caledonia, North Marianas, Pitcairn, and Tanzania. Drupa morum inhabits rocky shores, where it can be found in crevices of the lower eulittoral zone. It is abundant from shallow waters down to 30 feet deep. It typically lives in seawater with a temperature of 25-30 degrees Celsius, and a salinity of 30-35 PSU.