Erronea adusta, common name the chocolate beauty or tanned/dark onyx cowry, is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries. This species was formerly regarded as a subspecies of the onyx cowry (Erronea onyx).
Description The shells of these cowries reach on average in length. The dorsum surface of Erronea adusta is smooth, shiny and generally dark brown. The base is also dark brown, usually with orange teeth. The interior of the shell is pale purple.
Distribution This species occurs in the Indian Ocean along East Africa (mainly Kenya, Mascarene, Mauritius and Tanzania).
Habitat In shallow subtidal water, Erronea adusta lives in the tropical and subtropical zones.
References
Verdcourt, B. (1954). The cowries of the East African Coast (Kenya, Tanganyika, Zanzibar and Pemba). Journal of the East Africa Natural History Society 22(4) 96: 129-144, 17 pls. Burgess, C.M. (1970). The Living Cowries. A. S. Barnes and Co, Ltd. Cranbury, New Jersey
External links Biolib WoRMS Erronea adusta on flmnh.ufl.edu
Erronea succinta adusta