Bivetopsia haemastoma is a species of sea snail, a marine gastropod mollusk in the family Cancellariidae, the nutmeg snails.Bouchet, P. (2015). Bivetopsia haemastoma (G. B. Sowerby I, 1832). In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=608045 on 2015-06-07
Description
The length of the shell is 15–20 mm. Distribution Endemic to the Galapagos Islands.
References
Hemmen J. (2007) Recent Cancellariidae. Annotated and illustrated catalogue of Recent Cancellariidae. Privately published, Wiesbaden. 428 pp. [With amendments and corrections taken from Petit R.E. (2012) A critique of, and errata for, Recent Cancellariidae by Jens Hemmen, 2007. Conchologia Ingrata 9: 1–8