MAinLAM; (iKOI.OCIc \1, SI li\i;Y 2X^ 



PROTOZOA. 



qassRHIZOPODA. 



Order FORAMINIFHRA. 



Family THXTULARIDAH. 



Genus THXTUl.ARIA Ddrance. 



Ti:x'i'ii. AIM A (;kami:n (rOi-lii-iiiy. 



I'latc LXII. Fig. 1. 



Tcrtiihirid i/ra/in/i crOrbi<i:uy, ISJCi, Foi-am. Fossiles Vieiine, p. 248, pi. xv, tigs. 

 4-0. 



Textularia gramen Brady, 1884, Chal. Kept., vol. ix, p. ?><;5, i)l. xliii, tigs. 9, 10. 



Textularia gramen Bagg, 1898, Cret. Foram. New Jersey, Bull. S8, U.S. Geol. Sur- 

 vey, p. 29. 



Descriiilioii. — Test arenaceous, rough, stoutly built, laterally com- 

 pressed, margin snbangiilar; normally composed of five to seven wide 

 chambers (in onr Eocene specimens of nine or ten) in each series, which 

 are but slightly convex; posterior end neatly rounded and in general 

 outline very similar to T. haiicrii, but differing from that species by its 

 more angular lateral edges, and distinguished from T. ahhreviata. which 

 it also resembles, in being less short and thick. 



The little specimens of this Textularia from the localities of the 

 Eocene below agree well in general characteristics with typical forms 

 except in the greater number of chambers. They are composed of 

 finely agglutinated grains well-rounded and smoothed over and the 

 shells are quite compactly built for this species. The sutures are 

 slightly depressed giving thus some relief to the chambers, especially 

 to the final ones. This is a rare form in the Eocene of Maryland 

 though common in the Miocene of Virginia. In present oceans it 

 occurs in nearly all latitudes but is commonest on shallow bottoms. 



Occurrence. — Aquia Formation. Upper Marlboro, 1 mile northeast 

 of Piscataway. 



Collections. — Maryland Geological Survey, Johns Hopkins University. 



