Plate 8. 



Fig. 1. LagcHu maruiiKita. var. X40. 02150. 



2. Lftf/eiia orbiginjaiia, var. variabilis. X50. Front view. D2097. 

 8. Lagena orbigiijiaiKi, var. X50. Front view. D25G4. 



4. Lagena orbignyana, var. X50. Front view. D22G0. 



5. Lagena orbigngana, var. clatlirata. X75. After Heron-Allen and 



Earland. 



6. Lagena ornata. X200. After Heron-Allen and Earland. 



7. Lagena monUtgui. X75. a, front view; b, apertural view. After 



Wright. 



8. Lagena ornata. " Part of the peripheral carina." After William- 



son. 



9. Lagena ovum.. X75. After H. B. Brady. 



10. Lagena ovum. X120. After Heron-Allen and Earland. 



11. Lagena paradoxa. X50. D2.S52. 



12, 13. Lagena perlurida. After Williamson. 



186 



