86 THE INVERTEBRATE FAUNA 



This species is common between tide marks 

 at Wardie, Elie, and other parts of the 

 Firth. Fleming, in his " British Animals," 

 mentions having found a specimen at New- 

 haven, with only six valves. 



Chiton ruber (Lowe). 



Firth of Forth (M '.) ; between tide marks 

 (F. M. .) ; abundant on roots and stems 

 of Laminaria on North Berwick shore, 

 after storms (M.). 



C. marmoreus (Fabr.). 



Eare on Black Eocks, Leith (Knapp). 

 We have taken this species in 5 fathoms, 

 about half a mile to the west of Inchkeith. 



II. PECTINIBRANCHIATA 



PATELLID^:. 



Patella vulgata (Linn.). 



Extremely common between tide marks on 

 rocky shores. Large, heavy specimens at 

 Cramond Island. 



P. vulgata, var. picta. 



Granton and South Queensferry (M.). 

 We have taken this variety on the rocks 

 at Joppa. Specially common at North 

 Berwick, at low water. 



P. vulgata, var. ccerulea. 



Granton and North Berwick, not rare. It 

 shades off, through intermediate forms, 

 into var. picta (M.}. 

 We have obtained it at Wardie. 



P. vulgata, var. depressa. 



The Patella athletica of Forbes and Hanley. 

 This well-marked variety is frequent 

 along the whole North Berwick coast, at 

 very low water, and in rock pools between 

 tides. It grows in its longest diameter to 

 2'3 inches. It becomes rare as we go up 

 the Firth, being evidently not an estuary 



