238 SYSTEMATIC PALEOXTOLOGT 



Occurrence. — Aquia Formatiox. Brooks Estate near Seat Pleasant, 

 Upper Marlboro. 



Collections. — Johns Hopkins University, Maryland Geological Survey. 



ISTODOSAEIA CONSOBRINA VAE. EMACIATA (Eeuss). 



Plate LXII, Fig. 8. 



Dentalina consohrina var. emaclata Reuss, 1865, Denkschr. d. .k. Akad. Wiss. Wien, 



Yol. XXV, p. 133, idI. ii, figs. 12, lo. 

 Nodosaria consohrina var. ernaciata Brad}', 1884, Chal. Rept. , vol. ix, p. .50:3, pi. Ixii, 



figs. 3.5, 36. 

 Nodosaria consobrina var. ernaciata Bagg, 1S98, Bull. Amer. Pal., No. 10, p. 35. 



Description. — Test smooth, elongate, tapering gracefully, segments 

 nnmeroiis, short, elongate oval; similar in outline to N. consohrina but 

 more elongated and slender; septae somewhat depressed, transverse. 

 The proximal chamber is rounded and ends in a nipple-shaped aperture. 



Both N. consohrina and the variety ernaciata are found living in the 

 jSTorth x4tlantic at depths ranging from 290 to 725 fathoms, and in the 

 South Atlantic at 350 fathoms; off the Cape of Good Hope, 150 fath- 

 oms; and in the South Pacific, 129-1375 fathoms.^ 



This species has a wide distribution in the fossil world. It is found in 

 several formations of the New Jersey Cretaceous, according to Wright 

 it occurs in the Chalk of Ireland, Jones and Parker report it in the 

 London Clay, Eeuss, Bornemann, etc., record it in the Septaria Clays of 

 Germany, the Miocene of i^^ustria (d'Orbigny), the later Tertiaries of 

 Italy (Costa), the Post-Tertiary of ISTorway (Crosskey and Eobertson), 

 the Island of Ischia (Broeck), and in Scotland (Eobertson). 



Occurrence. — Aquia Formation. Upper Marlboro. 



Collection. — Johns Hopkins University. 



Nodosaria sandbergeri (Eeuss). 

 Plate LXII, Fig. 9. 



Dentalina sandbergeri Reuss, 1856, Sitzuugsb. k. Akad. Wiss. Wien, vol. xviii, p. 

 334, pi. i, fig. 5. 



Description. — Test stoutly built, composed of from four to eight cham- 

 bers which are constricted at the sutures; primordial chamber larger 



1 Brady, Cbal. Rept., p. .503. 



