108 FORAMINIFERA 



with typically a linear series of chambers, simple; wall 

 arenaceous with a chitinous lining; aperture in the early stages 

 at the base of the apertural face, in the adult circular and 

 terminal. 



Carboniferous to Recent. There is a wide range of habitat 

 in the present ocean, some species only found in cold, deep 

 water, others in very shallow warm waters of the tropics. 



Genus FLABELLAMMINA Cushman, 1928 

 Plate 54, fig-ures 7, 8 



Genoholotype, Flabellammina alexanderi Cushman 



Flabellammina Cushman, Contr. Cushman Lab. Foram. Res., vol. 4, 

 1928, p. 1. 



Test much compressed, in the early stages close coiled, later 



EXPLANATION OF PLATE 10 



LiTUOLIDAE 



Fig. 

 1-3. Trochamminoides proteiis (Karrer). X 15. Fig. 1, (After type 



figure). Figs. 2, 3, (After H. B. Brady). 

 4, 5. Haplophracjmoides canariensis (d'Orbigny). Fig. 4, (After type 



figure). X 65. Fig. 5, (After H. B. Brady). X 35. a, side 



view; b, apertural view. 

 6, 7. Endothyra bowmani Phillips. X 35. (After H. B. Brady), a, 



side view; b, apertural view. Fig. 7, Section. 



8. Cribrostomoides bradyi Cushman. X 10. (After type figure). 



9. Atnmobaculites agghifwayis (d'Orbigny). (After type figure), a, 



front view; b, side view; c, apertural view. 



10, 11. Ammobaculites calcareum (H. B. Brady). (After type figures). 

 Fig. 11, Section. 



12, 13. Haplophrag')m7nn aeqnaiis (Roemer). (After Reuss). Fig. 13, 

 Section. 



14, 15. Cyclamviina canceUata H. B. Brady. X 10. (After H. B. Brady). 

 Fig. 15, Section. 



16-18. Lituola nautiJoidea Lamavck. Fig. 16, (After type figure). Figs. 

 17, 18, From specimens on type slide, showing aperture. 



19, 20. Choffatella decipiens Schlumberger. (After type figures), a, side 

 view; b, apertural view. Fig. 20, Section. 



21-23. Pseudocyclaytiviina liiuufi (Yokoyama). Fig. 21, (After type fig- 

 ure). Figs. 22, 23, (After Yabe and Hanzawa). Fig. 22, Sec- 

 tion. Fig. 23, Apertural view. 



