FORAMIXIFERA. 259 



1901. Truncatulina lobatula Bagg, Md. Geol. Surv., Eocene, p. 

 252, pi. 64, fig. 3. 



1904. Truncatulina lobatula Bagg, Md. Geol. Surv., Miocene, p. 



464, pi. 1 3 1, figs. 7-8. 



1905. Truncatulina lobatula Bagg, Bull. U. S. G. S., No. 268, p. 



46, pi. 9, fig. i. 



Description^ "Test plano-convex, moderately vaulted; last 

 volution consisting of seven or eight chambers, with very slightly 

 depressed septa; septa more curved upon the superior (flat) sur- 

 face; aperture a small, neatly shaped arch at the margin of the 

 ultimate segment. 



"Diameter, 0.36-1.13 mm." (Bagg.) 



Remarks. "The above species shows great variation. Pro- 

 fessor Brady considers that the more convex varieties merge into 

 Truncatulina refulgent, while flattened forms resemble Trunca- 

 tulina ivuellerstorfi. The regular-built convex varieties constitute 

 the Truncatulina boueana of d'Orbigny, and the less regular tne 

 Truncatulina variabilis of the same author." ( Bagg. ) 



Formation and locality. Marshalltown clay-marl, Marshall- 

 town (Bagg) ; Navesink marl, Freehold (Bagg) ; Vincentown 

 limesand, New Egypt, Mullica Hill (Bagg) ; Manasquan marl, 

 Vincentown (Bagg). 



Geographic distribution. New Jersey ; Eocene of Maryland 

 .and Virginia, Miocene of Maryland and California. 



Truncatulina refulgens (Montfort). 

 Plate IV., Figs. 13-15. 



1808. Cibicides refulgens, Montfort, Conch. Syst., vol. i, p, 122, 



3i e genre. 

 1884. Truncatulina refulgens, Brady, Chal. Rept, vol. ix, p. 



659, pi. xcii, figs. 7-9. 

 1898. Truncatulina refulgens Bagg, Bull. U. S. G. S., No. 88, 



p. 66. 



Description. "Test subconical, superior surface complanate, 

 inferior, very much elevated ; consisting of about eight chambers 

 in the last convolution ; sutures somewhat depressed upon the in- 



