Cypraecassis rufa is a species of large sea snail, a marine gastropod mollusc in the family Cassidae. The Cassidae are a taxonomic family of medium-sized, large, and sometimes very large sea snails.

Cypraecassis rufa is commonly known as the bullmouth shell or red helmet shell, and also as the cameo shell.

Please note that each natural specimen is unique, there may be small variations in size or color, as well as minor imperfections in the specimen you receive.