NO. 4 CUSHMAN AND MCCULLOCH: SOME VIRGULININAE 209 



EXPLANATION OF PLATE 24 



Figs. 



1. Bolivina laevigata (Williamson), x 120. 



2, 3. Bolivina marginata Cushraan, var. adelaidana Cushman 

 and Kleinpell. 2, x 120, 3, x 70. a, front view; b, apertural 

 view. 



4-7. Bolivina minuta Natland. 4, 5, x 145. 6, 7, x 130. aa, front 

 views ; bb, apertural views. 



8. Bolivina pisciformis Galloway and Morrey. x 120. 



9-12. Bolivina paula Cushman and Cahill. 9, 10, x 120. 11, 12, 

 xl80. 



13-15. Bolivina plicata d'Orbigny. x 70. a, front view; b, apertural 

 view. 



