138 MOLLUSCA. 



No. 608. Rostellaria carinata, Mant. 



This genus, by nearly twenty times more abun- 

 dant in former geological times than in our own, 

 was represented during the Cretaceous period by 

 some very extreme forms, of which the present speci- 

 men is one. From the Gault, Folkestone, England, 

 and now in the private Geological Cabinet of Mr. 

 Ward, Kochester. Price, $0.50. 



No. 609. Pyrula melongena, Gratioioup. 



A fine specimen from the Miocene Tertiary, Saucats, France, and now in the 

 Ward Museum, University of Rochester. Price, $1.00. 



No. 610. Fusus antiquus, MuUer. 



(Var. contrarius, Sow.) An interesting, reversed form, and 

 a very characteristic shell of the Red Crag (Pliocene Tertiary), 

 Norfolk, England. Original in the Ward Museum, University 

 of Rochester. Price, $0.60. 



No. 611. Fusns longaevns, Lam. 



From the Middle Eocene (Tertiary), Bracklesham, England, and now in the 

 private Geological Cabinet of Mr. Ward, Rochester. Price, $0.75 



No. 612. Natica pelops, D'Orb. 



From the Upper Lias, LaVerpilliere, France, and now in the Ward Museum, 

 University of Rochester. Price, $0.30. 



No. 613. Naticella tubicina, Barrande. 



This specimen was taken from the Lower Silurian, at Butowick, Bohemia, 

 and is in the Ward Museum of the University of Rochester- Price, $0.25. 



No. 614. Chemnitzia (Phasianella) Saemanni, Oppel. 



From the Inferior Oolite, France, and in the same Museum as the above. 



Price, $0.75. 

 No. 615. Losonema desiderata, Hall. 



From the Corniferous limestone (Devonian), Falls of Ohio. Price, $0.20. 



No. 616. Macrocheilus arculatus, Phillips. 



This type of the genus is from the Devonian, Eifel, Rhenish Prussia, and is 

 in the Ward Museum, University of Rochester. Price, $1.30. 



