56 CATALOGUE OF SHELLS. 
Fam TurBINID. 
Gen. Turbo. Lin. 
1. T.  Marmoratus Lin. 
a. Eastern Seas. 
b. Operculum. These opercula were called “Venus na- 
vels” by old authors, and are still a source of much 
wonder to those unacquainted with conchology. 
2. T. Cornutus Gmel. 
Eastern Seas. 
3. T. Radiata Gmel. Soc. Cab. 
a. b. Eastern Seas (?) 
Tt seems somewhat questionable if this species is more than 
a var of I’. Margaritaceus. 
4, T. Petholatus Lin. Mr. MacLeod. 
Tsle of Burias. 
5. T. Sarmaticus Lin. Mrs Thomas. 
Cape. 
a. Operculum of do. 
This operculum is figured in the 5th Bridgewater Treatise, page 
253, and absurdly referred to Helix Pomatias ! 
ey bee Sparverius Gmel. 
Philippines. 
This specimen was labelled ‘I, Argyrosoma to which it bears no 
resemblance. 
