OF THE FIRTH OF FORTH. 81 



Mactra stultorum, var. cinerea. 



Mouth of the Almond, etc. (M.). 



Lutraria elliptica (Lamk.). 



Firth of Forth (M'B., Ed. Mus., and 

 F. and ff.) ; Portobello (M.). 

 We have collected this species at Porto- 

 bello, and at Caroline Park. 



Scrobicularia prismatica (Mont.). 



Firth of Forth (F. and H.) ; off Elie (MB). 

 Occurs sparingly alive on the sands at very 

 low water between Granton and Cramond 

 Island, especially towards Cramond Island. 

 Empty shells, with the valves still united, 

 are a little commoner (M.). 

 We have found this species on the shore 

 west from Aberdour. 



S. nitida (Miiller). 



St Abb's Head, 40 fathoms (Mete, and 

 Hey). 



S. alia (Wood). 



Firth of Forth (Ed. Mus.) ; Off Elie (MR). 

 Frequent at Portobello, etc., living at 

 low water, and on the beach brought up 

 by storms (M.). 



S. piper ata (Bellon.). 



Firth of Forth (F. and H. y and MR)-, 

 . Caroline Park, shells well preserved, but 

 not living ; they are in a bed of blue clay 

 between tides (M.). 



We dredged this species last summer in 

 5 fathoms, to the south-west of Inchkeith. 



SOLENHLE. 



Solen pellucidus (Penn.). 



Firth of Forth (MR, and Thomas and 

 Knapp) ; brought up by the tides between 

 Portobello and Leith, and between Granton 

 and Cramond Island, but not plentiful 

 (M.) ; east of Inchkeith (J. Hunter Bar- 



