359 



St. Maurice and Claiborne Pelecypoda 



259 



Figure 



PLATE 58 



1-6. Corbiila gibbosa l^ea, Claiborne 



Fig. I, 13 mm. 



2, 9 " 



3, II " 



4, 7 " 



5, II " 

 7-10, 12-15. Corbula imtrchisoni L,ea, Claiborne. 



Fig. 7, 14 mm. 



8, 14.5 



9, II-5 

 10, 13 

 12, 3 



14, 10 ' -yvuu^v--* 



11,16-20. C. intcrchisoni, yax.fossata ^&sXt. Mississippi. 

 Fig. II, 5 mm. 



16, 7 " 



17, 8 " 



18, broken. 



19, 7 mm. 



20, 4 " 



21-27. Corbula extetinata Dall, Orangeburg Dist 



Fig. 21, 4 mm. 



22, 8 " 



23, 5 " 

 24,5 " 



25-27, about 6 mm. each'. 



Page 

 .. 191 



191 



193 



194 



