252 AClCTJLIDiE. 



regular distinct plications ; beneath the suture, a faint Striation 

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

 30 Batti Halve (type) j coll. Dr. P. Stoliczka. 



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



1. Tomichia ventricosa, Sow. 



3 South Africa. 



Genus CECINA, A. Adams (type G. manchurica) . 



1. Cecina manclmrica, A. Ad. 



4, Wladimir Bayj ex c. H. Adams, Esq. 



Genus TRUNCATELLA, Sisso. 



1. Truncatella caribaeensis, Sow. 



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

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



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



2. Truncatella adamsi, Pfeiffer. 



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



3. Truncatella pulchella, Pfeiffer. 



20 Cuba ; ex c. Prof. W. Neweomb ; ex c. Landaner. 



4. Truncatella montagui, Lowe. 



20 England ; ex G. NevUl, Esq. 



6. Truncatella marginata, Kuster. 



1 S. Australia ; ex British Museum, 

 I doubt the correct identification of this form. 



6. Truncatella vitiana, Gid. 



7 Ovalauj ex c. A. Morelet, Esq., and ex c. Landaner. 



7. Truncatella truncatula, Drap, 



4 Mediterranean. 



8. Truncatella californica, PfeifEer. 



10 California ; ex c. Prof, W. Neweomb, 



