226 CRETACEOUS PALEONTOLOGY. 



1845. Frondicularia angusta Reuss, Verstein, bohm. Kreide r 



pt. i, p. 29, pi. viii, figs. 13, 14. 

 1898. Frondicularia angusta var. dimidia Bagg, Bull. U. S. G. 



S., No. 88, p. 47, pi. 3, fig. 7 a-b. 



Description. "Test lanceolate, very elongate, strongly com- 

 pressed and leaf-like ; consisting of from ten to twelve chambers, 

 which gradually increase in size toward the proximal end, where 

 the greatest breadth occurs; primordial chamber spherical, ele- 

 vated, mucronate, and the surface marked by three sharply defined 

 ribs ; surface of shell marked by numerous fine longitudinal lines, 

 running nearly parallel to the lateral edges ; septa distinct, slightly 

 raised externally as ridges; aperture normally round, terminal. 



"Length, 2.6 mm. ; breadth, i mm. 



Remarks. "This species is very closely allied to the European 

 forms, but differs principally in the number of chambers, which 

 is invariably less than one-half of those of the former type. It 

 is common in the limesand at Vincentown." (Bagg.) 



Formation and locality. Vincentown limesand, Vincentown 

 (Bagg). 



Geographic distribution. New Jersey. 



Frondicularia archiaciana d'Orbigny, var. strigillata Bagg. 

 Plate II., Fig. 22. 



1840. Frondicularia- archiaciana d'Orbigny, Mem. Soc. geol. 



France, ser. i, vol. iv, p. 20, pi. i, figs. 34-36. 

 1884. Frondicularia archiaciana' Brady, Chal. Rept., vol.- ix, p. 



520, pi. cxiv, fig. 12. 

 1898. Frondicularia archiaciana- var. strigillata Bagg, Bull. U. 



S. G. S., No. 88, p. 47, pi. 3, fig. 5. 



Description. "Test elongate, complanate, anteriorly acute, 

 posteriorly obtuse, and provided with a short spine; chambers, 

 six to eight, relatively large, equally compressed, and slightly 

 limbate at the lateral edges ; surface marked by definite elevated 

 striae, of which the two central rows are more prominent than 

 those near the margin; primordial chamber globular; ultimate 

 chamber prolonged, tube-like ; aperture small, rotund. 



