102 kelliadjE. 



Tenby (S. H.) ; in twelve fathoms, Anglesea (M'Andrew). 

 On the Scottish coast it has been taken at Oban (Barlee) 

 and off Skye (Jeffreys). On the Irish Coast it was first 

 taken in twenty fathoms, Cove of Cork (E. F. and R. 

 Ball) ; since in Bantry Bay (M'Andrew) ; Arran Isles 

 and Birterbuy Bay (Barlee). 



Mr. M'Andrew has dredged this curious Mollusk on the 

 Atlantic Coast of Spain. 



L. convexum, Alder. 



Minute, a little swollen, not contracted above ; punctures longer 

 than broad ; central tooth rather large. 



Plate XXXVI. fig. 10 (magnified), 



Lcpton convexum, Alder, Catalogue of the Mollusca of Northumberland and 

 Durham, p. 93. 



" Shell rather convex, transversely ovate, white ; covered 

 with minute transversely oblong punctures ; hinge with the 

 central tooth rather large, and the lateral laminae small. 



" A single valve of a minute shell, with these characters, 

 has occurred to us at Cullercoats. It is evidently a Lepton, 

 and differs from the L. squamosum in being rather more 

 convex, in having the punctures of the surface oblong 

 instead of circular, and in the greater proportional size of 

 the tooth. These seem to indicate a specific distinction ; 

 but as the specimen is scarcely a line in diameter, and 

 probably young, we cannot speak very confidently. The 

 nucleus on the umbo is, however, so much smaller than 

 that of L. squamosum, that we conclude it never attains 

 the same size." 



Although since the publication of this interesting new 

 species a live and perfect individual (delineated in our 



