58 
VENUS planus* 
TAB. XX —Lower Figures . 
Spec. Char. Rather depressed^ subcordate^ slightly 
angular towards the anterior side; surface 
smooth ; edge entire. 
About two inches and an eighth in length, and two inches 
and three-eighths in width ; a strong but not thick shell ; 
the cicatrix is lanceolate. 
A dull corneus appearance 5 with a semitransparency and 
plainness of form 9 have given rise to the name; it is also 
from Blackdown, by favour of the same Lady as the above. 
The black particles of sand seem to have decomposed into 
a kind of ochre. 
