224 



BIBLIOGRAPHY OF 



[part II. 



Oray. — Nomenclature of Molluscous Animals and Shells in the 

 Collection of the British Museum. Part I. Cyclophorida; : 

 by J. E. Gray. London, 1850. 



65 

 65 



Cyclotus Mexicanus. 



Cyclostoma Mexicana Mke. 

 Aperosloma Mexicana Pfr. 

 Cyclostoma Cinciuuatiease Lea. 

 deutatum Suij. 



Locality. 

 Mexico. 



Gray & Pfeiffer. — Catalogue of Phaneropneumona, or 

 Terrestrial Opereulated Mollusca in the Collection of the 

 British Museum : by Drs. Gray & Pfeiffer. London, 1852. 



