Table 8: West Heslerton – HPP028. Molluscan taxa recorded from the column samples.

Sample 9063 9064 9065 9066 9067 9068 9069 9070 9071 9072 9073 9074 9075 9076 9077 9078 9079 9080
Abundance # 0 0 1 1 1 1 1 1 1 2 1 1 2 2 2 2 2 1
Open country
Helicella sp.    +         +     ++   +++
Pupilla muscorum            +      + +   
Vertigo pygmaea        +*             
Vertigo sp.           +         
Vallonia costata                +      
Vallonia excentrica           +       +   
Vallonia sp.       +   +    ++        
Catholic
Trichia hispida     +   +++++  +     +   +
Cochlicopa sp.           +    +     +  
Marsh
Lymnaea truncatula         +   +    +++++  
Aquatic
Pisidium sp.                +    
Lymnaea peregra               +    ++
Valvata cristata            +        
Planorbis planorbis        ++++ +  +++++  
Planorbis contortus         + +      +   +  
Planorbis laevis          +     + +     +
Planorbis leucostoma               +      
# – abundance – 1=1-10; 2=11-50; 3=51=150; 4=151-250; 5=>250 items
* – shells burnt; habitat groupings broadly taken from Evans 1972; Macan 1977; Ellis 1969; Cameron and Redfern 1976.