36 THE PALEONTOLOGY OF MINNESOTA. 



[Lagena, Nodosaria. 



The arched part of the shell is very variable in form, sometimes nearly circular, 

 almost egg-shaped or even narrow and long-elliptic, very near cylindriform. To- 

 wards the top it is drawn out into a thin tubular beak, which embraces half the 

 length of the shell. The surface is covered with irregularly disposed, but crowded 

 shorter and longer, thicker and thinner, variously shaped thorny tubercles. In some 

 examples, especially the narrow-elliptical ones, the tubercles are very small and 

 contracted into short monticules. 



Locality. Northeastern Minnesota. 



LAGENA FAVOSA-PUNCTATA Brady. 



PLATE B, FIGS. 3-6. 



Lagena favosa-punctata BEADY, 1881. Quart. Journ. Mic. Soc., vol. xxi, n. s., p. 62. 



Lagena favosa-punctata BRADY, 1884. Keport on Foram. H. M. S. Challenger, Zool., vol. Ix, p. 473, 



pi. Iviii, flg. 35 ; pi. lix, flgs. 3, 4 : pi. Ixi, flg. 2. 

 Lagena favosa-punctata WOODWARD and THOMAS, 1885. Thirteenth Annual Eeport, Geol. Nat. 



Surv. Minn., p. 170, pi. iv, flgs. 32, 33, 34, 38. 



" Test ecto- or ento-solenian, shape variable ; surface areolated or reticulated, 

 with a conspicuous orifice or perforation in the middle of each area or depression. 

 Length ^th inch (0.34 mm.) or less." BRADY, loc. cit. 



Locality. Meeker county, Minnesota. Found only in the material from Minnesota. 



NODOSARIN^E. 



NODOSARIA, Lamarck. 

 NODOSARIA (D) COMMUNIS d'Orbigny. 



PLATE D, FIGS. 7, 8. 



Nautilus rectus MONTAG, 1803. Test. Britann., p. 197 ; supplem. p. 82, t. 19, flgs. 4-7. 



Nautilus subarcuatus MONTAG, 1803. Test. Britann., p. 198, t. 6, flg. 5. 



Nodosaria (Dentalina) corn'munis d'ORBiGNY, 1826. Ann. Sci. Nat., vol. vii, p. 254, No. 35. 



Dentalina carinata d'ORBiGNY, 1826. Ann. Sci. Nat., vol. vii, p. 255, No. 39. 



Nodosaria terigata NILSSON, 1827. Petriflcata Suecana, p. 8, vol. ix, flg. 2. 



Dentalina lorneiana d'ORBiGNY. 1831. Foram. Craie bl. Paris ; Mem. Soc. Geol. France, vol. vi, p. 14, 



pi. i, flgs. 8, 9. 

 Dentalina nodosa d'ORBiGNY, 1839. Foram. Craie bl. Paris ; Mem. Soc. Geol. France (2) vol. iv, p. 14, 



pi. i, flgs. 6, 7. 



Dentalina gracilis, Id., Ibid., vol. vi, p. 14, pi. i, flg. 5. 

 Dentalina communis, Id., Ibid., (1840) p. 13, pi. 1, flg. 4. 

 Nodosaria radicularis MUnst., Rom., 1838. Nord. tert. Meeressand; Leonh. u. Bronn's, Jhrb., 1838, p. 



382, pi. 3, flg. 3. 



Nodosaria linearis Rom., 1842. Vert, nordd. Kreidegeb. , p. 95, pi. xv, flg. 5. 

 Nodosaria nodosa REUSS, 1845. Bohm. Kreide 1, p. 28, pi. xiii, flg. 22. 

 Nodosaria gracilis, Id., Ibid., p. 27, pi. viii, flg. 6. 

 Nodosaria lorneiana, Id., Ibid., p. 27, pi. viii, flg. 5. 

 Nodosaria communis, Id., Ibid., p. 28, pi. xii, flg. 21. 

 Nodosaria kgumen, Id., Ibid., p. 28, pi. xiii, flgs. 23, 24. 



