106 PROCEEDINGS OF THE NATIONAL MUSEUM vol.77 



Distribution. — Our specimens are mostly from the Miocene of 

 France, where the species is common and well developed. We have 

 specimens from the following localities : 



Miocene. — France, Aquitanian superieur, St. Avit, near Mont de 

 Marson, near Bordeaux; Burdigalien superieur, Merignac (Gironde); 

 Burdigalien inferieur, Le Coquillat, Leognan; Moulin de I'Eglise, 

 Saucats. 



Oligocene. — Upper, Germany, Ahnatal, near Cassel. 



PSEUDOPOLYMORPHINA DOLLFUSSI Cushman and Ozawa, new species 



Plate 27, figures 6, 7 



Test cylindrical, but little compressed, rounded at the base, obtuse 

 at the apertural end; chambers elongated, not much embracing, 

 arranged at first in a triserial series, becoming biserial later, each 

 succeeding chamber removed much farther from the base; sutures 

 very little depressed, not very distinct; wall rather thin, smooth; 

 aperture large, radiate. 



Length 0.95-1.40 mm.; breadth 0.28-0.35 mm.; thickness 0.18-0.22 

 mm. 



Eolotype. — (Cushman Coll. No. 11739.) From the Miocene, Burdi- 

 galien inferieur, Le Coquillat, Leognan, France. Paratype in collec- 

 tion of Geological Institute, Imperial University of Tokyo, Tokyo, 

 Japan. 



The present species has a tendency to become more or less uniserial 

 in the later stages, but the sutures are invariably oblique and the 

 chambers alternating. 



This species is named for Dr. G. Dollfuss, of Paris, formerly Pre- 

 sident of the Society G^ologique of France, who furnished excellent 

 material from the Miocene of France for our studies. 



Distribution. — This species occurs in the Miocene of France. We 

 have specimens from the following localities: 



Miocene. — Aquitanian superieur, La Brede, Larriey, near Bor- 

 deaux; Burdigalien superieur, Merignac (Gironde); Burdigalien 

 inferieur. La Coquillat, Leognan. 



PSEUDOPOLYMORPHINA DOLLFUSSI Cushman and Ozawa var. TENUISTEIATA Cushman 



and Ozawa, new variety 



Plate 27, figures 8 a, h 



Variety differing from the typical in the ornamentation of the test, 

 which consists of very fine longitudinal striations. 



Length 0.80-1.10 mm.; breadth 0.18-0.25 mm.; thickness 0.15- 

 0.22 mm. 



Eolotype of variety. — (Cushman Coll. No. 11743.) From the Miocene 

 of St. Paul de Dax, near Bordeaux, France. Paratypes in the 

 collection of the University of Tokyo. 



