130 PROCEEDINGS OF THE NATIONAL MUSEUM vot. 77 



Polymorphina pauperata Terqtjem, M6m. Soc. Geol. France, ser. 3, vol. 1, 



1878, p. 38, pi. 3 (8), figs. 11 a to 19. 

 Globulina varians Terquem, M^m. Soc. Geol. France, ser. 3, vol. 2, 1882, p. 



128, pi. 13 (21), figs, 9-16. 



Variety differing from the typical in its more elongate lanceolate 

 test consisting of elongated chambers and more acute initial end. 



Polymorphina pauperata Terquem, described from the Pliocene of 

 the Isle of Rhodes, is a compressed lanceolate form having an acute 

 initial end. It is a few-chambered specimen and resembles a com- 

 pressed Globulina. We have several such specimens which are invari- 

 ably small, and they appear to us to represent a young stage of the 

 present variety. Globulina varians Terquem from the Eocene of 

 Vaudancourt may be also placed under the present species, as far 

 as his first and second figures are concerned. 



Distribution. — We have specimens more or less typical from the 

 following locahties : 



Recent. — Mediterranean, 10-14 fathoms, off the island of Delos. 



Pliocene. — Italy, Castel Arquato. 



Miocene. — France, Burdigalien inferieur, Le Coquillat, Leognan; 

 Moulin de I'Eghse, Saucats. 



• Eocene. — France, Lutetien, Chaussy; Grignon. United States, 

 Jackson, east bank of Sepulga River, about 4 miles northeast of 

 Brooklyn, Conecuh County, Ala.; Rich Hill, Crawford County, Ga. 



SIGMOMORPHINA SCHWAGERI (Karrer) 



Plate 34, figures 1 a-c 



Polymorphina schwageri Karrek, Abhandl. k. k. geol. Reichs., vol. 9, 1877, 



p. 384, pi. 16 b, fig. 43. 

 Polymorphina (Guttulina) megapolitana Clodius, Archiv. Ver. Fremde Nat. 



Mecklenburg, 75 Jahr., 1922, p. 126, pi. 1, fig. 9 a-c. 

 Polymorphina regularis Hosius, Ver. Nat. Hist. Vereins Pr. Rheinlande, 



vol. 50, 1893, p. 107, pi. 2, fig. 8. 



Test elongate, equilateral, equally compressed on either side, 

 margin rounded; chambers slightly inflated, not much overlapping, 

 arranged in a clockwise sigmoid series, each succeeding chamber 

 removed farther from the base; sutures but little depressed, distinct; 

 wall thick, smooth; aperture radiate. 



Length of figured specimen 1.80 mm.; breadth 0.95 mm.; thickness 

 0.30 mm. 



Karrer's Polymorphina schwageri is fairly well drawn in its sigmoid 

 arrangement of chambers, although he did not describe it correctly. 

 It is a well-defined species, and there is no other to be confused with 

 it. Sigmomorphina regularis has the same arrangement of chambers, 

 but it is more compressed, especially on the margin. 



