eed PROCEEDINGS OF THE NATIONAL MUSEUM. ake 
Wassa mendica Gld. 
Three; Catalina Island. Rare, and not found alive at San Pedro. 
(R. E. C. 8.) 
Nassa mendica var. Cooperi F bs. 
Alive at Catalina. Fossil at San Pedro. (R. E. C. 8.) 
Nassa mendica var. elongata. 
This variety is unusually long. (R. EK. C. 8.) 
Nassa perpinguis Hds. 
Empty shells plentiful in the drift on the beach. 
Nassa tegula Kve. 
On mud flats. (‘‘Close to N. vibex of the Atlantic.” W. H. D.) 
Family COLUMBELLID. 
Genus COLUMBELLA Lam. 
Columbella baccata Gask. 
A young dead one. (C.T. 8.) Southern fauna. 
Columbella (Astyris) carinata Hds. 
Not rare; often dead. 
Columbella (Astyris) gausapata Gld. 
Rarer than C. carinata. 
Columbella (Astyris) tuberosa Cpr. Pl. xx, fig. 6. 
Two or three dead shells. Amycla of Carpenter. 
Columbella (Anachis) penicillata Cpr. 
Two. (W.H.D.) Southern fauna. 
Columbella (Anachis) tincta Cpr. 
One dead. “Gulf of California shell.” (C. T. 8.) 
Columbella (4isopus) chrysalloidea Cpr. 
One on San Pedro beach, [Cooper] U.S. Nat. Museum. 
Genus AMPHISSA Adams. 
Amphissa versicolor Dall. Pl. xx, fig. 9. 
A few living specimens found. One here figured is rather shorter 
proportionately than the majority of specimens. (W. H. D.) 
Amphissa bicolor Dall. Pl. xx, fig. 4. 
Shell small, solid, pale with brown bands and six convex whorls; 
nucleus eroded in the specimens; suture distinct, not appressed, whorls 
