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 (/‘.) ; between tide marks 
(f. M. &.); abundant on roots and stems 
of Laminaria on North Berwick shore, 
after storms (JZ). 
C. marmoreus (Fabr.). 
Rare on Black Rocks, Leith (Knapp). 
We have taken this species in 5 fathoms, 
about half a mile to the west of Inchkeith. 
II. PECTINIBRANCHIATA— 
PATELLIDA, 
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 (JZ). 
We have taken this variety on the rocks 
at Joppa. Specially common at North 
Berwick, at low water. 
P. vulgata, var. cwrulea. 
Granton and North Berwick, notrare. 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 
