Plate 22 



Figure 1. Spiropthnlmidium acutimargo (H. B. Brady). X 40. After H. B. 

 Brady. 



2. Spiropihalmidiuni acutimargo (H. B. Brady), var. concava (Wiosncr). 



X 90. After Heron-Allen and Eariand. a, b, oi)i)osite .sides; 

 c, peripheral view. 



3. Planispirina auriculata Egger. X 90. Tortugas. «, h, opposite 



side.s. 



4. Vertebralina cassis d'Orbigny. X 50. Montego Bay, Jamaica. 



a, side view; b, apertural view. 



5. Vertebralina cassis d'Orbigny, var. »iucronata d'Orbigny. X 80. 



Tortugas. 



6. Vertebralina striata d'Orbigny. After Williamson, a, front view; 



b, apertural view. 



7, 8. Fischerina dubia (d'Orbigny). X SO. Tortugas. 7. dorsal view; 

 8. ventral view of adiother specimen. 



123 



