302 SMART AND COOKE : MARINE SHELLS OF SCILLY. 



occurs elsewhere, but is very particular in its choice of a 

 home. It is found in dark or shaded places or under 

 ledges, just below high water mark, not on large stones, 

 but on a face of rock, particularly where there are empty 

 Balani and mosses, but an indispensable accompaniment 

 to all this is a certain amount of moisture ; — it is never 

 found on dry rocks. 



LIST OF SHELLS 

 found at Scilly by the Rev. J. H. Jenkinson and F. H. Jenkin- 

 son, Esq., but which are not in the preceding list : — 

 Lepton squamosum Mont. Chiton fascicularis L. 

 L. convexum Turt. Rissoa semistriata Mont. 



Donax politus Poli. ScalariaTrevelyana Lea. 



Mactra stultorum L. lanthina exigua Lam. 



Lutraria oblonga Chem. Philine punctata Clark. 



Mya truncata L. P. aperta L. 



The following are given as occurring in Scilly on authority 

 of Jefif. Brit. Conch., but not confirmed by us : — 

 Pecten striatus Miill. Akera bullata Miill. 



LIST OF SHELLS 

 occurring in the Abbey list as Scillonian, but whose authority as 

 such is unknown, and whose occurrence has not been 

 confirmed : — 



Anemia patelliformis L. 



Modiola phaseolina Phil. 



Nucula decussata Sby. 



Cardium aculeatum L. 



C. rusticum L. 



C. pygmseum Don. 



Teliina solidula Pult. 



Donax anatinus Lam. 



Ceratisolen legumen L. 



J.C, iv., April, 1885. 



