FAMILY 9. TEXTULARIIDAE 119 



Genus MONOGENERINA Spandel, 1901 



Plate 11, figure 22; plate 13, figure 10 

 Genotype, by designation, Monogenerina atava Spandel 

 Monogenerina Spandel, Festschr. nat. ges. Niirnberg, 1901, p. 181. 



Test free, elongate, cylindrical or slightly arcuate, tapering 

 from the initial end ; chambers uniserial except occasionally bi- 

 serial in the earliest stages of the microspheric form, simple; 

 wall finely arenaceous with much cement, smoothly finished ; 

 aperture rounded, terminal, simple. 



Carboniferous and Permian, 



Genus GEINITZINA Spandel, 1901 



Plate 11, figure 23; plate 13, figure 11 

 Genotype, by designation, Textularia cuneiforynis Jones (not d'Orbigny) 



Geinitzina Spanuel, Festschr. nat. ges. Niirnberg, 1901, p. 1.5. 

 Geinitzella Spandel, Verlag-Instit., "General Anzeiger", Niirnberg, 1898, 



p. 7. 

 Textularia (part) Jones (not Deprance), in Mantell, Quart. Journ. 



Geol. Soc, vol. 6, 1850, p. 330. 



Test very similar to Monogeneriria but much compressed, the 

 sides concave in some species, and the aperture elongate. 

 Carboniferous and Permian. 



Genus LUNUCAMMINA Spandel, 1898 



Plate 54, figure 14 

 Genotype, by designation, Lunucammina permiana Spandel 



Lunucammina Spandel, Verlag-Instit., "General Anzeiger", Niirnberg, 



1898, p. 8. 

 Frondicularia (part) of authors. 



Similar in general to Geinitzina but one broad side concave, 

 the other convex, the aperture small, rounded, nearer the con- 

 cave side at the end of the test. 



Permian to Jurassic. 



Genus NODOSAROUM Rhumbler, 1913 



Plate 11, figure 21; plate 13, figure 12 



Genotype, by designation, Nodosaria index Ehrenberg 



Nodosaroum Rhumbler, Foram. Plankton-Exped., pt. 2, 1913, p. 443, 



