EXPLA.NATION OF PLATE XXXII. 



Limoptera ? permo-carhonifera, Eth. fil. 

 Fig. 1. Left valve with indistinct radii. 

 „ 2. Eight valve with ligaraental pit und^>r the left umbo and nodes 

 representing muscular pits in the umbonal cavity of the 

 right valve. 



Stutchburia farleyensis, Eth. fil. 

 ,, 3. Internal cast of a right valve. 

 ,, -i: Hinge line of conjoined valves, internal cast. 

 „ 5. Internal cast of anterior end of conjoined valves. 

 ,, 6. The same of another example. 



