102 THE NAUTILUS. 



Natica glaucina L. Appears to be this. 



Natica hebraea Martyn. A well-known species. 



Natica intracatoides Hid. Several. 



Sigaretus philippii Weinkauff. Mrs. Whishaw has found two or 

 three in as many years. 



Adeorbis subcarinata Mtg. Fine specimens in drift. 



Scala commutata Mont. Scala lamellosa ? Lam. A few. 



Scala pulchella liiv. One in drift. 



Leiostraca sp. May prove new. 



Phasianella pulex L. Seldom fresh. 



Astralium rugosum L. A large heavy shell. 



Trocluis lineatus Da Costa. Mrs. Whishaw. Trochus obliquata 

 Gmel. 



Ctilliostoma zizyphinum L. Mostly worn specimens. 



Haliotis tuberculata L. Mrs. Whishaw. Fissurella nubecula L. 

 A few. 



Paiella aspera Lam. Mrs. Whishaw. Patella vulgata L. 

 Plentiful. 



POLTPLACOPHORA. 



Chiton marginatus Pennant. Living under stones resting on mud. 



SCAPHOPODA. 

 Dentalium dentalis L. Examples vary. Some smooth. 



PELECTPODA. 



Ostrea angulata ? Lk. May be this. 



Anomia ephippium L. Innumerable valves are constantly washed 

 on the beach. 



Lima squamosa Lam. Mrs. Whishaw. A large valve. 



Pecten jacobaeus L. Mrs. Whishaw. 



Pecten sulcatus Born. Around Port Saint Mary. 



Pecten varius L. Lives in Atlantic as well as Mediterranean. 



Avicula tarentina Lam. Not rare. 



Mytilus edulis L. Sold in fish markets. 



Modiola barbata Lk. Area barbata L. Mrs. Whishaw. 



Pectunculus gaclitanus Gmel. Many valves. 



Cardita sulcata Lam. Mrs. Whishaw. 



Cardium edule L. Plentiful. 



Cardium edule lamarcki Reeve. Several. 



