VOL. XV, 
ae PROCEEDINGS OF THE NATIONAL MUSEUM. Jt 
Family CANCELLARIID ®%. 
Genus CANCELLARIA Lam. ~ 
Cancellaria Cooperi Gabb. Pl. xx, fig. 2. 
Three sea-worn examples of this rare and splendid species were found 
by two collectors. 
Family LAMELLARITD. 
Genus LAMELLARIA Montagu. 
Lamellaria Stearnsii Dall. 
One shell; soft parts gone. Monks. 
Family NATICIDA. 
Genus SIGARETUS Lam. 
Sigaretus debilis Gld. 
Occasionally washed ashore in the winter with the soft parts gone. 
One fine shell, with part of the epidermis remaining, was collected by 
Miss Monks, on Rattlesnake Island. 
Genus NATICA Lam. 
Subgenus LUNATIA Gray. 
Natica (Lunatia) Lewisii Gld. 
Not often found with the animal in them. Largest ones washed 
ashore in the bay and at Catalina Island. 
Subgenus NEVERITA Risso, 
Natica (Neverita) Recluziana Petit. 
Plentiful in the sand, at Santa Monica with Tivela. 
Family TRITONIID 24. 
Genus RANELLA Lam. 
Ranella californica Hds. 
Occasionally washed ashore. Often brought in by fishermen. 
Family MITRID. 
Genus MITRA Lam. 
Mitra maura Swains. 
Not plentiful, dead. Two or three have been found alive. 
