241 St. Maurice and Claiborne Pelecypoda 241 



PLATE 40 



I'Mgure Page 



I, 2, a. Lucina rotunda 'L.&Si , 122 



Fig. I, 28 mm. 

 2, 29 " 

 2 a, 31 " Claiborne. 



3, 4, a. Cordis daiborttensis Dall 123 



Fig. 3, 35 mm. 



4, 31 '■ 



4 a, 32 -(- mm. Claiborne. 



5. Cordis itndata Qonr&A, T)^rms\., Claiborne 124 



6-S, a. Sp/icsrella an feprodur/a Harris 124 



Fig. 6. 18 mm., type specimen, Singley Coll., Tex. 



7, 24 " St. Maurice. 



8, 27 " 



8 a, and b, enlarged , from St, Maurice specimens. 

 9. Sphccrella bulla Con. A Jacksonian specimen from Bayou 

 Toro, La., showing difference in outline from antcpro- 

 duda from the St. Maurice beds. 



10-14. Diplodonta uugulina Conrad, Claiborne 127 



Fig. 10, 13 mm. 

 • II, 27 " 



12, 17 " 



13, 4 " 



14, 5 " The latter two are greatly enlarged to 

 show juvenile characters. 



15, 16. Diplodonta nana Lea, Claiborne •• 128 



Fig. 15, 3-5 mm. 

 16, 5 " 



17-19. Diplodonta injiata hea., Claiborne 129 



Fig. 17, 10.5 mm. 



18, 12 



19, 16 " 



20-21, a. Diplodonta corbiscula, n. sp., 4 mm., Claiborne 130 



