FORAMINIFERA. . 205 



composition in this case led to a discussion by Dr. W. J. Sollas, 1 

 'On the perforate character of the genus Webbina,' etc., and the 

 later establishment of a new genus, Vitriwebbina, by Frederick 

 Chapman, 2 which I have adopted as a solution of the difficulty 

 presented by this isomorphous form." (Bagg.) 



Formation and locality. Vincentown limesand, Vincentowrr 

 (Bagg). 



Geographic distribution. New Jersey. 



Vitriwebbina laevis (Sollas). 

 Plate I, Figs. 40-41. 



1877. Webbina laws, Sollas, Geol. Mag., n. s., decade 2, vol. iv. 



No. 3, March, pp. 103-104, pi. vi, figs. 1-3. 

 1892. Vitriwebbina lavis Chapman, Geol. Mag., n. s., decade 3, 



vol. 9, p. 54, pi. 2, fig. 4. 

 1898. Vitrewebbina lavis Bagg, Bull. U. S. G. S., No. 88, p. 36, 



pi. 2, figs. 4a-b. 



Description. ''Test very similar to Vitriwebbina sollasi in 

 shape and general appearance, and differing from that species 

 only in having no external marginal flange and in being some- 

 what more elevated. The form occurs with the preceding in the 

 limesand at Vincentown, but is not very common, while Vitri- 

 mebbina sollasi is rather plentiful." ( Bagg.) 



Formation and locality. Vincentown limesand, Vincentown 



(Bagg). 



Geographic distribution. New Jersey. 



Sub-family NODOSARIN/E. 



Genus NODOSARIA Lamarck. 



Nodosaria acuminata (Reuss). 



1860. Dentdina acuminata Reuss, Sitz. Akad. Wiss. Wien, vol. 



xl, p. 181, pi. i, fig. 7. 

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



36. 



1 Geol. Mag., n. s., decade 2, vol. iv, No. 3, March, 1877, pp. 102-105. 



2 Geol. Mag., n. s., decade 3, vol. ix, No. 2, Feb., 1892, p. 53. 



