9S 



Sbg. Platygyra Mörch Mal. Bl. 1860. p. Si. 

 235. Bittium (Platygyra) Emmersoni C. B. Ad. 



„Sil. long conical, chestnut coloured; wliorls 17, 

 flat, each encircled witli three series of granules; canal 

 less tlian the length of the aperture." 



Cerithiurn Emmersoni Ad. Bost. Journ. of N. H. 

 11. p. 284. t. 4. f 10. 



Cerithimn Emersonii Gould Inv. Mass. p. 275. f. 

 180. 



Cerithium Gould ed. 2. p. 287. f. 649. 



Cerithiurn Stimps. Shells of N. Engl. p. 5 (animal.) 



Cerithium punctatum L. p. p. Sow. Thes. p. 139. 



Hab. Nantucket Sound et New Bedford Harbour 

 (Ad.), South Carolina, Buzards Bay (Smith & T. Prime.) 

 237. Bittium (Platygyra) subulatum Mtg. 



„Sh. white, about 15 spires, defined by a purplish 

 brown spiral line : each AATOught with two rows of beads 

 divided by a depressed Hne in which are observed mi- 

 nute elevated Striae, in contrary direction; eanal short 

 and turning to the left; in this part it resembles Murex 

 tuberculatus, but the canal is more turned; the base is 

 smooth destitute of tubercles, and of a dusky brown 

 colour. Long, '/s i^ch." (Mtg.) 



Murex subulatus Mtg. Test. Brit. Supp. p. 115. 

 t. 30 f. 6. 



Murex subulatus Wood Index f. 168. 



Cerithium elegans Blv. Faune Franc, t. 6 A. f. 9? *) 



Cerithium elegans Forb. & Hanl. 3. p. 201. 



Cerithium punctatum L. Beau Cat. Guadeloupe, 

 p. 11. 

 Hab. St. Thomas (Riise) Guadeloupe. (Schramm? Beau.) 



var. major. 



Cerithium punctatum „L." Phil. Mke. Zeitschr. 1848. 

 p. 23. Nr. 92. 



*) Cerithium lacteum Phil., Talde diTersum. 



