Umbilia petilirostris
NameUmbilia petilirostris
Scientific NameUmbilia petilirostris
Common NamePetilirostris Cowrie
FamilyCypraeidae
GenusUmbilia
Speciespetilirostris
Geographic DistributionEndemic to Western Australia, typically found off the coast from Perth to the Great Australian Bight.
Habitatsubtidal
Average Size (mm)50-80 mm (the specimen in the image measures approximately 50 mm in length).
Identifying FeaturesDistinctive ovate, glossy shell with a pale, spotted dorsum. The 'petilirostris' (slender rostrum) refers to the somewhat elongated and narrow anterior and posterior canals. The overall shape and characteristic spotting pattern are key identifiers.
Raritycommon
Author CitationLorenz & Hubert, 1993
Description
Umbilia petilirostris is a medium to large-sized, highly glossy cowrie shell, characterized by its ovate and inflated shape. The dorsum is typically pale cream to light beige, adorned with numerous small, irregular, light brown to orange-brown spots. The extremities are somewhat produced, forming a slender rostrum, which gives the species its name. This species is highly sought after by collectors due to its rarity and attractive appearance.
