252 ACICTJLHXffi. 



regular distinct plications ; beneath the suture, a faint striation 

 is discernible, by the aid of a lens. Long. 2 ; diam. 1J mil. 

 30 V.-tti Halve (type) ; coll. Dr. F. Stoliczka. 



Genus TOMICHIA, Bens, (type T. ventricosa, Sow.). 



l. Tomichia ventricosa, Sow. 



3 South Africa. 



Genus CECINA, A. Adams (type C. mancJmrica). 



1. Cecina manchurica, A. Ad. 



4 Wladimir Bay ; ex c. H. Adams, Esq. 



Genus TRUNCATELLA, Bisso. 



1. Truncatella caribseensis, Sow. 



6 W. Indies ; ex c. P. L. Layard, Esq. 

 11 Cuba ; ex. c. Prof. W. Newcoinb. 



7 St. Thomas' ; ex c. W. A. Brown, Esq. 



2. Truncatella adamsi, PfeifEer. 



1 Jamaica; donor E. L. Layard, Esq. (As. Soc., Bengal). 



3. Truncatella pulchella, Pfeiffer. 



20 Cuba j ex c. Prof. W. Newcomb ; ex c. Landaner. 



4. Truncatella montagui, Lowe. 



20 England ; ex G. Nevill, Esq. 



5. Truncatella marginata, Kuster. 



1 S. Australia j ex British Museum. 

 I doubt the correct identification of this form. 



6. TruncateJla vitiana, Gid. 



7 Ovalau ; ex c. A. Morelet, Esq., and ex c. Landaner. 



7. Truncatella truncatula, Drap. 



4 Mediterranean. 



8. Truncatella californica, Pfeiffer. 



10 California ; ex c. Prof. W. Newcomb. 



