FORAMINIFERA. 215 



segments. The ribs are very distinct and elevated, and there are 

 small intermediate striae between some, but not all, of the main 

 costse. The aperture ends in a phialine neck." (Bagg.) 



Formation and locality. Hornerstown marl, Blue Ball 

 (Bagg). 



Geographic distribution. New Jersey. 



Nodosaria obliqua (Linne). 

 Plate II., Figs. 12-13. 



1767. Nautilus obliquus Linne, Syst. Nat., twelfth ed., pp. 281, 

 1163; 1788, ibid., thirteenth (Gmelins) ed., p. 3372, 

 No. 14. 



1822. Orthocera obliqua Lamark, Anim. sans Vert., vol. 7, No. 



4, P- 594- 

 1827. Nodosaria sulcata Nilsson, Petrefacta Suec., p. 8, pi. ix, 



fig. 19. 

 1840. Dentalina sulcata d'Orbigny, Mem. Soc. geol. France, 



ser. i, vol. iv, p. 15, pi. i, figs. 10-13. 

 1855. Dentalina steenstrupi Reuss, Zeits. deutsch. geol. Gesell., 



vol. vii, p. 268, pi. viii, fig. I4a. 



1855. Dentalina sulcata Reuss; ibid., p. 269, pi. viii, fig. I4b. 

 1866. Dentalina obliqua Jones, Parker, and Brady, Monograph 



Foram. Crag, Pal. Soc. vol. xix, p. 54, pi. i, fig. 9. 

 1884. Nodosaria obliqua Brady, Chal. Rept., vol. 9, pp. 513, 



514, pi. 64, figs. 20-22. 



1898. Nodosaria obliqua Bagg, Bull. U. S. G. S., No. 88, p. 41, 

 1898. Nodosaria obliqua Bagg, Bull. Amer. Pal, vol. 2, No, 



10, p. 26 (320).- 



1900. Nodosaria obliqua Chapman, Proc. Cal. Acad. Sci., ser. 3, 



vol. i, No. 8, p. 249, pi. 29, fig. 17. 



1901. Nodosaria obliqua Bagg, Md. Geol. Surv., Eocene, p. 



239, pi. 62, fig. 10. 



1905. Nodosaria obliqua* Bagg, Bull. U. S. G. S., No. 268, p.. 

 31, pi. 5, fig. 7. 



Description. "Test very large, elongated, arcuate, tapering; 

 septal lines depressed ; numerous costae upon the surface, which 

 vary in size and number in different specimens; chambers nu- 



