102 PROCEEDINGS OP THE NATIONAL MUSEUM vol.77 



distinct; wall studded with irregular, angular, low elevations imparting 

 a mottled appearance to the exterior, sometimes ro.arked with strong 

 angular elevations unequally distributed; aperture radiate. 



Maximum length 1.60 mm.; breadth 1.25 mm.; thickness 0.30 mm. 



The present very interesting species is described from the Crag of 

 Sutton for the first time hj Jones, Parker, and H. B. Brady, who 

 characterize the species as having the surface with irregular and 

 angular depressions. We have examined material from the same 

 locality and found several specimens showing the same characters as 

 Pseudo'polymorphina variata excepting surface ornamentation. Our 

 specimens are ornamented with irregular elevations instead of depres- 

 sions. We have well preserved specimens from the Miocene of Pont- 

 ic voy in France, which are marked by graphically distributed eleva- 

 tions imparting to the surface an appearance of depressions at lower 

 magnification. 



Terquem figured two different specimens obtained from the Pliocene 

 of the Isle of Rhodes under the name Polymorphina fischeri. One 

 has a smooth surface, while the other has a many-chambered elongate 

 test, the wall of which, according to his description, is rugose or 

 arenaceous. If his specimen really belongs to the Polymorphinidae, 

 we may suppose it may be rugose and not arenaceous. His smooth 

 specimen is separated as a variety of the present species. 



Distribution. — The species seems to be limited to the late Tertiary 

 in Europe. Brady, Parker, and Jones's specimens are from the Crag 

 of Sutton, where it is rather common. We have specimens from the 

 type locality at Sutton and from the Miocene of Pontlevoy, France. 

 Terquem's rough specimen from the Pliocene of the Isle of Rhodes 

 is probably to be placed under this species. 



PSEUDOPOLYMORPHINA VARIATA (Jones. Parker, and H. B. Brady) var. FISCHERI (Terquem) 



Plate 10, figures 8, 7; Plate 28, figures 7, 8 



Polymorphina fischeri Terquem, Mem. Soc. Geol. France, ser. 3, vol. 1, 1878, 



p. 41, pi. 3 (8), figs. 37, 39. 

 Guttulina racemosa Terquem, M§m. Soc. Geol. France, ser. 3, vol. 1, 1878, 



p. 46, pi. 4 (9), figs. 20-22 (not figs. 23, 24). 

 Polymorphina compressa Jones, Foram. Crag, pt. 3, 1896, p. 258, pi. 1, figs. 



54, 65, 77-80; and (distorted) pi. 5, figs. 26, 28. 

 Polymorphina dilatata d'Orbigny, Ann. Sci. Nat., vol. 7, 1826, p. 265, No. 



11.— FoRNASiNi, Riv. Ital. Pal., vol. 8, 1902, p. 2, pi. 1, fig. 5. 

 Polymorphina lecointreae Allix, Feuille des Jeunes Naturalistres, vol. 43, 



1913, p. 34, fig. 5 (in text). 

 Polymorphina consecta d'Orbignt, Ann. Sci. Nat., vol. 7, 1826, p. 265, No. 



10.— FoRNASiNi, Riv. Ital. Pal., vol. 8, 1902, p. 2, pi. 1, fig. 4. 



Variety differing from the typical form in having a smooth surface. 

 Maximum length 2 mm,; breadth 1.30 mm.; thickness 0.50 mm. 



