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TEREBRATULA resupinata. 
TAB. CL.— Fig. 3 and 4. 
Spec. Char. Oblong ovate, front depressed by a 
large rounded plaits sides elevated, rounded : 
lower valve obtusely carinated, with a sharp 
beak and a longitudinal ridge along each side,. 
Length about one-fourth greater than the width : the 
sinus on the front is rounding in the middle with 
straightish sides ; the lower sides of the shell are 
rounded anti entire ; the carina of the lower valve is very 
broad and rounded. 
Mr. Strangwayes sent me this from Ximinster, he 
found it in the coarse Limestone : it is remarkable for 
being the reverse of the preceding species or resupinate 
in comparison with it ; on which account, although a 
plainer shell without plaits on the edges, it has so general 
a resemblance at first sight, that the two have been laid 
together as the same species. I believe neither are yet 
commonly known ; all that I have yet seen have as| 
pehraeeous tinf. 
