EXPLANATION OF PLATES 



Plate 1 



Figures 1, 2. Rhabdammina discreta H. B. Brady, X 40. 

 3. Saccammitia rhumhleri (Fianke) (?), X 40. 

 4-6. Pelosina compJanata Franke, X 35. Figures 4 and 6, composed 

 largely of cement and with smooth surface. Figure 5, specimen 

 with a roughened surface of angular fragments. 

 7, 8. nijperammina elongata H. B. Brady, X 40. 

 9. Hypcrammina (?) sp. (?), X 35. 

 10-12. Saccorhiza ramosa (H. B. Brady), X 35. Broken fragments show- 

 ing characteri-stic curvature of the test and roughened surface. 



13. Reophax sp. (?), X 40. 



14. Hormosina globtiUfcra H. B. Brady, X 35. 



15-17. Nodellum velascoensis (Cushman), X 40. Figures 15, 16, much 

 distorted. Figure 17, more normal form. Figures 15, 17. megalo- 

 spheric. Figure 16, microspheric. 



Platej 2 



Figure 1. Ammodiscus glabratus Cushman and Jarvis, X 35. 



2, 3. Ammodisotis pennyi Cushman and Jarvi-s, X 35. Figure 2, side view 

 of megalospheric form. Figure 3, vertical section of another speci- 

 men. 

 4, 5. Ammodiscoides turbinatus Cushman, X 30. Figure 4, adult specimen 

 from dorsal side. Figures 5 a, &, young specimen : a, Dorsal side ; 

 6, ventral side, showing the conical stage in the young. 

 6,7. Glomospira gordialis (Jones and Parker), X 40. 

 8-10. Olomospira charoides (Jones and Parker) var. corona Cushman and 

 Jarvis, X 60. 

 11 fl, 6. Lituotuha Utuiformis (H. B, Brady), X 35. a, 6, opposite sides. 



12. Ammolagetia clavata (Jones and Parker), X 30. Megalospheric speci- 

 men attached to Ammodiscus pennyi. 

 13-15. Eaplopliragmoides coronata (H.B.Brady), X 30. Specimens more or 

 less distorted, showing the peculiar forms assumed by this species. 



Plate 3 



Figure 1. Eaplopliragmoides excavata Cushman and Waters, X 80. 



2a, 6. Eaplopliragmoides eggeri Cushman, x 30. a, Side view; h, periph- 

 eral view. 

 3. Cribrostomoides trinitatensis Cushman and Jarvis, X60. Apertural 

 view of holotype specimen. 

 4,5. AmmobacuUtes coprolithiforme (Schwager), X 40. Side views of 



specimens showing different stages in development. 

 6 a, h. Cyclammiim elegans, news species, X 25. a. Side view; b, peripheral 



view. 

 7a, 6. Spiroplectammina dentata (Alth), X 30. a. Front view; b, apertural 

 view. 



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