PLATE IV. 



Fig. 1. Thinnfeldia rhomhoidalis, Ettingshausen. Page 34. [52,751a.] 



Figs. 2, 2a. Thinnfeldia rhomhoidalis, Ett. P. 34. [52,672.] 



Fig. 3. Thinnfeldia rhomhoidalis, Ett. P. 35. [52,751.] 



FiGB. 4, 4a. Oycadites rectangularis, Brauns. P. 38. [52,665.] 



