96 THE INVERTEBRATE FAUNA 



This species is extremely common in the 

 littoral zone in the Firth. 



Purpura lapillus, var. imbricata. 



Granton and Newhaven. I have not found 

 a good specimen of this variety at North 

 Berwick, though the species varies very 

 much there as regards colour (M.) ; Firth 

 of Forth (Dr Knapp). 

 This variety is common at Wardie, Aber- 

 dour, etc., between tide marks. 



Buccinum undatum (Linn.). 



Firth of Forth (Ed. Mm., and M'R). 

 Forms occur which approach the varieties 

 littoralis and striata, but they are not 

 very well marked (M.). 

 Very common on the oyster bank and in 

 other parts of the Firth. We have also 

 taken it between tide marks at Wardie 

 and Aberdour. 



Murex erinacetys (Linn.). 



Firth of Forth (Ed. Mm.). 

 Dead shells of M. erinaceus are not rare 

 on the beach at North Berwick. I took 

 a living specimen in a rock pool at very 

 low water there (M,}. 



Trophon truncatus (Strom.). 



Wardie, Portobello, and North Berwick 

 (M.)', Firth of Forth (Ed. Mus.). 

 We have dredged this species in the Firth, 

 and have also taken it at Wardie. 



Fusus antiques (Linn.). 



Firth of Forth (Ed. Mus.) ; Firth of Forth, 

 30 fathoms (Metz. and Mey) ; Off the Isle 

 of May (M'R). 



This species is not uncommon. We have 

 dredged it in Kirkcaldy Bay, 9 fathoms ; 

 north-east of Inchkeith, 12 fathoms ; and 



