252 CRETACEOUS PALEONTOLOGY. 



Polymorphina oblonga d'Orbigny. 



1846. Polymorphina oblonga d'Orbigny, Foram. Foss. Bassin 

 tert. Vienne, p. 232, pi. xii, figs. 29-31. 



1898. Polymorphina oblonga Bagg, Bull. U. S. G. S., No. 88 r 

 p. 62. 



Description. "Test elongate, consisting of a small number of 

 oblong inflated chambers separated by deep sutures. This feature 

 separates it from Polymorphina lactea var. oblonga Williamson, 

 which has an oval compressed shell with erect segments and flush 

 sutures. 



"Length, 1.43 mm." (Bagg.) 



Formation and locality. Navesink marl, Freehold (Bagg) ; 

 Vincentown limesand, Timber Creek (Bagg). 



Geographic distribution. New Jersey. 



Polymorphina orbignii (Zborzewski). 

 Plate III., Fig. 26. 



1834. Apiopterina d' orbignii Zborzewski, Nouv. Mem. Soc, 

 Imp. Nat. Moscou, vol. iii, p. 311, pi. xxviii, fig. 2 b. 



1870. Polymorphina orbignii Parker, Jones and Brady, Trans. 

 Linn. Soc. London, vol. xxvii, p. 244, pi. xlii, fig. 38 a-c. 



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

 p. 62. 



Description. "Test oval, with a fistulose base; surface of shell 

 sm'ooth. The tube-like projections are very interesting and pecu- 

 liar, and are the distinguishing feature of the species. They sur- 

 round the base like a crown, extend out irregularly, and branch 

 at their distal ends. The figures of this species indicate septal 

 divisions, but these are not discernible externally. 



"Diameter, 0.87 mm." (Bagg.) 



Formation and locality. Vincentown limesand, Vincentown 

 (Bagg). 



Geographic distribution. New Jersey. 



