224 CRETACEOUS PALEONTOLOGY. 



siders this species identical with A'', raphanistrum., but the twa 

 species are sufficiently distinct to justify the retention of the 

 original name given by Professor Reuss. 



"This species has a very wide geolo^gical range and distribution 

 in the Cretaceous, and occurs in every marl bed oi New Jersey. 



"In the large amount of material examined in the preparation 

 of this report an, interesting case of dimorphism was observed in 

 one of the specimens of Nodosaria sippei. The shell which has 

 been previously referred to begins as a textularian with two 

 chambers side by side, each bearing the same number of costas 

 'as the original form and united above into a straight typical 

 nodosarian chamber. It was found in the green marl of Blue 

 Ball, where the Nodosariae are so perfectly preserved that 

 mucronate forms still retain their spines in almost perfect con- 

 dition." (Bagg.) 



Formation and locality. — Marshalltown clay-marl, Marshall- 

 town (Bagg) ; Navesink marl, Freehold (Bagg) ; Hornerstown 

 marl. Blue Ball; Vincentown limesand, Vincentown, Harrison- 

 ville, etc. (Bagg) ; Manasquan marl, Vincentown (Bagg). 



Geographic distribution. — New Jersey. 



Genus Lingulina d'Orbigny. 



Lingulina carinata d'Orbigny. 



Plate II., Figs. 25-26. 



1826. Lingulina carinata d'Orbigny, Ann. Sci. Nat., vol. vii,. 



p. 257, No. I. 

 1884. Lingulinn ccmnata, Brady, Chal. Kept., vol. ix, p. 517,. 



pi. Ixv, fig. 16, 17. 

 1898. Liwguiina carinttta Bagg, Bull. U. S. G. S., No'. 88, p. 46.- - 



Description. — "Test elliptical, elongate, laterally compressed;, 

 surface smooth and glistening; shell consisting O'f six somewhat 

 extended chambers, separated by arched septa ; peripheral margin 

 obtusely angular ; chambers increasing rapidly in size toward the 

 distal end and marked by distinct transverse septal lines ; primor- 

 dial chamber circular, not elevated; aperture a narrow terminal 

 slit. 



