78 THE INVERTEBRATE FAUNA 



We dredged this species last summer in 

 Aberlady Bay in 9 fathoms, and have 

 found it aliVe on the beach at Portobello, 

 Aberdour, etc. 



Venus gallina, var. gibba. 



Between Granton and Cramond Island, 

 with intermediate forms (M.). 



Tapes virgineus (Linn.). 



Firth of Forth (Ed. Mm., and M : B). 

 Good specimens in Newhaven Harbour, 

 sometimes milk-white (M.). 

 We have found this species at Portobello. 



T. pullastra (Mont.). 



Firth of Forth ; plentiful at low water, 

 especially near Newhaven and Cramond 

 (F. and H.) ; Firth of Forth (Ed. Mus., and 

 M'B.) ; Dalmeny, where it grows to a large 

 size 2J inches broad occasionally pure 

 white (M.) ; beach between Portobello and 

 Fisherrow (Metz. and Meyl). 

 We dredged it last summer off the Isle of 

 May, in 8 fathoms, and have collected it 

 at Elie, Cramond, and Portobello. 

 A monstrosity, showing the foliaceous 

 structure of the shell, gathered at Cocken- 

 zie, has the front margin, as it were, 

 of three shells, but only one hinge-line 

 (M.). 



T. pullastra, var. perforans. 



Living in soft rock at Wardie and North 

 Berwick at low water. Semi-fossil at 

 Longniddry and other places (If.). 



T. decussatus (Linn.). 



Beach between Portobello and Fisherrow 

 (Metz. and Mey.}. 



Lucinopsis undata (Penn.). 



Firth of Forth (M'B. t F. and IT., and 

 Ed. Mus.) ; Bass Kock, 24 fathoms (Metz. 

 and Mey.). 



