2 MCMURTRIE : MOLLUSCA OF NORTH BERWICK. 



of rough ground, sandhills with sea-side grasses, &c. Gullane 

 Links are fully five miles off, and Luffness Links are a mile 

 further. On Luffness Links there is a line of connected fresh- 

 water marshes, never dried up, and several ponds which are 

 sometimes nearly dry in summer. One pond, called the ice- 

 pond, is on the Links at the foot of Peffer Burn, so near the sea 

 that the spray comes over. It was artificially squared many 

 years ago, for the purpose (it is said) of furnishing Luffness ice- 

 house with ice. It is never quite dry. At the west end of 

 Luffness Links the Peffer Burn is crossed, and a little further on 

 is the village of Aberlady. The rainfall at Drem, five miles 

 from. North Berwick, is said to be the least in Scotland. 

 Sphsarium corneum L. — Marsh on Luffness Links. 

 PisidiUfT! fontinale Drap. — Small pond on Rhodes Farm. 



[This large form has been named fossajiimm by Herr 



Clessin]. 

 P. pusillum Gmelin. — Shallow marsh on Luffness Links, and 



Luffness Ice-pond. 

 P. pusillum var. obtusalis Lam. — With P. pusillum. 

 P. roseum Scholtz. — With P. pusillum. 

 Planorbis nitidus Mlill. — Marsh on Luffness Links, rare. 

 P. albus Mlill. — A dead shell in shell-sand cast up on beach. 



North Berwick. 

 P. complanatus L.— Marsh on Luffness Links. This mollusk 



is rare in Scotland. 

 P. contortus L. — Marsh on Luffness Links. 

 P. contortus var. minor Taylor. — With type. 

 Physa fontinaiis L. — Marsh on Luffness Links. 

 P. fontinaiis var. oblonga Jeff. — With type. 

 Limn^a peregra var. acuminata Jeff — Small pond on 



Rhodes Farm. 

 L. peregra Mull. var. maritima Jeff. — Pond, sometimes 



nearly dry, at east end of Luffness Links. 

 L. stagnalis L. var. variegata Hazay. — A pale, small, solid 



form, with white varices — abundant in Luffness ice-pond 



close to the sea. 



J.C., vi., Jan., 18S9. 



