BYNE : MARINE MOLLUSCA OF TEIGNMOUTH. 187 



P. nebula Mont. Dredged and trawled alive and dead in 

 the mud, but mostly belonging to a dwarf form. A great 

 many of this species and P. hrachysioiiia are eroded on the 

 upper whorls, even when the animals were in them. 



P. laevigata Phil. Only imperfect and dead shells in drift 

 and on the beach. 



P. laevigata v. minor Jeff. Several examples dredged alive. 



P. septangularis Mont. One beautiful specimen trawled 

 alive, also a few dead examples. 



P. rufa Mont. Occasional dead specimens. 



Cypraea europea Mont. A few hanging by their byssus on 

 the rocks at low tides, and young shells in weeds. Occurs 

 dead in large numbers on the beach. 



Ovula patula Penn. An imperfect specimen on the beach. 



Cylichna umbilicata Mont. Dead shells sparingly in drift. 



C. cylindracea Penn. Trawled and dredged fresh and dead, 

 also from the beach. 



Utriculus truncatulus Brug. Dead specimens from weeds 

 and drift. 



Actaeon tornatilis L. Small dead specimens on the beach. 



Bulla hydatis L. One lot of seventeen and another of three 

 trawled, all perfect, and from which the animals were 

 extracted, but the fragility of the outer lip does not render 

 this an easy process. Some young specimens were stranded 

 alive with L. perspicua, P. aperia, and young L. elliptica. 

 Dead shells have been obtained from time to time. 



Scaphander lignarius L. Five fine examples obtained only 

 by trawling, from which the animals were extracted by 

 placing them in boiling water, when the bodies fell out on 

 being touched. The shields of the gizzard were extracted, 

 of which there are three. The colour of the shell was dark 

 chestnut brown. 



Philine punctata Clark. A few alive from the rocks. 



P. aperta L. Occurs in large numbers in the mud of the 

 bay. 



