238 FORAMINIFERA 



Genus PLECTOFRONDICULARIA Liebus, 1903 

 Plate 33, figures 19-21; plate 34, figure 11 



Genoholotype, Plectofrondicularia concava Liebus 



Plectofrondicularia Liebus, Jahrb. k. k. Geol. Reichs., vol. 52, 1903, p. 76. 

 Frondicularia (part) of authors. 



Test elongate, compressed, in the microspheric form with the 

 early chambers planispiral, then biserial, the adult with cham- 

 bers in a rectilinear series and much compressed ; aperture in 

 the young at the inner margin of the chamber in the median 

 line, in the adult terminal, elliptical. 



Cretaceous to Recent. 



Genus AMPHIMORPHINA Neugeboren, 1850 



Plate 33, figure 22; plate 34, figure 12 

 Genoholotype, Amphimorphhia haueriana Neugeboren 



Amphimorphina Neugeboren, Verh. Mitth. siebenbiirg. Ver. Nat., vol. 1, 

 1850, p. 125. 



Test elongate, uniserial except in the microspheric form which 

 may show traces of the biserial stage, the earlier portion of the 

 test flattened as in Plectofrondicularia, later portion with the 

 chambers inflated; the aperture in the young elliptical, later 

 circular. 



Miocene. 



Genus NODOMORPHINA Cushman, 1927 



Plate 33, figure 23; plate 34, figure 13 

 Genoholotype, Nodosaria compressiuscula Neugeboren 



Nodomorphina Cushman, Contr. Cushman Lab. Foram. Res., vol. 2, 1927, 



p. 80. 

 Nodosaria (part) of authors. 



Test elongate, compressed, especially in the earlier portion; 

 chambers numerous, early ones quadrilateral in section, later 

 ones more nearly circular; sutures distinct, slightly depressed, 

 especially between the later chambers; wall ornamented by 

 numerous raised costae in pairs at either side of the median line 

 giving a bilateral symmetry to the test; aperture circular or 

 elliptical without teeth or radiate fissures, terminal. 



Miocene. 



