MAiiVi.wi) (ii:(H.()(;ic \i. M [i\ \.\ -i;};) 



llinii the one siicccf.liiin. ultiiiiiili' clinirilHT lar}.a'sl; i-liiiiiil)t'r.s niorc coii- 

 sdicti'd towiinls the oral oiid iiixl none (if tliciii f|iiiti.' i^u strongly dis- 

 tinct as ill IJcuss' tiLrurc. Siii-|'ac.' of slicll strongly costatc but ilifToring 

 liom iiciiss' s|icciiiiciis in that must of our forms have no costae upon 

 till' liiial si'miicnt. though this feature is not constant enough to make 

 a new variety. The aperture is situated ui>iiii one side as in Marginii- 

 lina types. 



K'euss" specimens \vci-e iVoiii the 'i'eiiiary deposits of Germany. 



Oi-ciirrciici'. — At^iiA h'l ii;M \ ri.)\. Ipper .Mai'lboro. 



( 'iilh'cliiui. — ^lai-yland ( leoldgieal Siirvev. 



^'oi)()s;.\i;iA oiii.K^rA (Linne). 

 Plate LXII, Fig. 10. 



XukIUks vbliquns Liuiiu, 1767, Syst. Nat., rJtli Edit., p. 11G8, No. 281; 1788, Syst. 



Nat., IStli Edit. (Gmelin's), p. 3372, No. 14. 

 Nodosaria obUqua Brady, 1884. Clial. Kept., vol. ix. p. 1.51 S, pi. Ixiv, tis^s. 20-22. 



Description. — Test variable in size, sometimes very large, elongate, 

 tapering, arcuate; septal lines depressed, surface costate, costae varying 

 in size and innnl)er in different specimens; chambers numerous, ventri- 

 cose, distinct; apertnre central, radiate. 



According to Professor Brady this species is found in every sea and 

 at all depths from the laminarian zone down to 1500 or 2000 fathoms. 



It occnrs frequently in the fossil state: Cretaceous of Sweden (Xillson), 

 Cretaceous of Mecklenburg, and elsewhere (Reuss), Cretaceous of Xew 

 Jersey (Bagg), Lower Eocene, Thauet Beds, Pegwell Bay (Burrows), 

 Tertiary of Germany (Eeuss, etc.), Tertiary of Italy (Costa). ^lany 

 other references could easily be given though these are sufficient to show 

 its wide distribution. 



These forms arc so large and long that one can find no perfect speci- 

 mens as they are easily broken in collecting and washing the marl. The 

 Cretaceous forms from Xew Jersey, however, are frequently perfect and 

 well preserved. 



Occurrence. — Aquia Foematiox. Upper Marlboro (fragments only). 



Collection. — Marvlaud Geoloaical Survev. 



