• Teulere’s cowry

Scientific classification
Kingdom:Animalia
Phylum:Mollusca
Class:Gastropoda
(unranked):clade Caenogastropoda
clade Hypsogastropoda
clade Littorinimorpha
Superfamily:Cypraeoidea
Family:Cypraeidae
Subfamily:Gisortiinae
Genus:Barycypraea
Species:B. teulerei

Dark specimens from Oman

From my collection

via Flickr https://flic.kr/p/2hzz1Ei