PLATE 21 



IBroomea longicornuta Alberti 

 Fig. i. Specimen V.5i733(i). X500. 



Odontochitina operculata (O. Wetzel) 

 Fig. 2. Specimen V.5i73o(4). xc.400. 



? Dingodinium albertii sp. nov. 

 Fig. 3. Holotype, ¥.51719(2). X500. 



Gardodinium eisenacki Alberti 

 Fig. 4. Specimen V.5 1726(1). X500. 



Paranetrelytron strongylum gen. et sp. nov. 

 Fig. 5. Holotype, V.5i722(i). X500. 



Muderongia staurota sp. nov. 

 Fig. 6. Holotype, ¥.51724(3). X650. 

 Fig. 7. Paratype, ¥.51718(3). X650. 



