FORAMINIFERA. 249 



1884. Polymorphina communis Brady, Chal. Rep., vol. 9, p.568, 



pi. 72, fig. 19. 

 1898. Polymorphina communis Bagg, Bull. U. S. G. S., No. 88, 



p. 60, pi. 6, fig. 2. 

 1898. Polymorphina communis Bagg, Bull. Am. Pal., vol. 2, 



No. 10, p. 29 (323). 

 1901. Polymorphina communis Bagg, Md. Geol. Surv., Eocene, 



p. 244, pi. 63, figs. 8-9. 



Description. — "Test irregularly ovoidal, or egg-shaped, con- 

 sisting of about four visible segments ; anterior extremity acute ; 

 posterior obtuse; surface smooth, with distinct septal depres- 

 sions ; chambers inflated, elliptical, embracing ; aperture mam- 

 millate. 



"Length, i.3-i.4mm. ; breadth, 1-1.3 mm." (Bagg.) 



Formation and locality. — Vincentown limesand, Vincentown 

 (Bagg). 



Geographic distribution. — New Jersey; Eocene of Virginia. 



Polymorphina emersoni Bagg. 



Plate III., Fig. 19. 



1898. Polymorphina emersoni Bagg, Bull. U. S. G. S., No. 88, 

 p. 60, pi. 6, fig. 3. 



Description. — "Test elongate oval, oral end acute, posterior 

 obtusely rounded ; surface of test covered completely by fine longi- 

 tudinal costse; chambers two, elongated, oblique, separated by 

 nearly straight septa slightly marked near the posterior end and 

 depressed at the peripheral margin ; aperture rotund. 



"Length, 1.9 mm." (Bagg.) 



Renmrks. — "This is a very rare species, and has only been ob- 

 tained in the lower marl of Freehold." (Bagg.) 



Formation and locality. — Navesink marl. Freehold (Bagg). 



Geographic distribution. — New Jersey. 



