8 PROCEEDINGS OF THE NATIOXAL MUSEUM vol. 75 



sutures distinct, depressed, slightly curved, marked by a few small 

 retral processes; wall smooth, finely perforate except the umbilical 

 regions which are covered by a coarsely granular ornamentation; 

 apertures consisting of three or more small rounded openings at the 

 base of the last-formed chamber close to the median line. 



Diameter 0.36 mm., thickness 0.15 mm. 



Holotyiie.— {Cat. No. 20776, U.S.N.M.) from Juan Fernandez, 

 collected by Dr. Waldo Schmitt. 



This is an interesting species especially in the ornamentation of 

 the umbilical regions. 



ELPHIDIUM species 



Plate 3, figures 10 a, b 



This species figured on Plate 3, figure 10 is not given a name as 

 further specimens should be studied to determine its exact relation- 

 ships. It is noted here for future reference. 



Family BULIMINIDAE 



Genus BULIMINELLA Cushman, 1911 



BULIMINELLA ELEGANTISSIMA (d'Orbigny) 



Plate 3, figures 12 a, b 



Bulimina elegantissima d'Orbigny, Yoy. Amer. M(5rid., 1839, vol. 5, pt. 5, 



"Foraminiferes," p. 51, pi. 7, figs. 13, 14. 

 Bulvminella elegantissima Cuskman, Bull. 71, U. S. Nat. Mus., pt. 2, 1911) 



p. 89. 



This species was described by d'Orbigny- from the west coast of 

 South America where he had specimens from several stations from 

 Peru to Chile. There have been numerous forms referred to this 

 species from various parts of the v\-orld both fossil and recent. Our 

 specimens from Juan Fernandez are of the slender form figured by 

 d'Orbigny from his types. 



Genus BULIMINA d'Orbigny 



BLLiMINA PATAGONICA d'Orbigny 



Plate 3, figures 11 a,h 



Bulimina 'patagonica d'Orbigny, Voy. Amer. Merid., 1839, vol. 5, pt. 5' 

 "Foraminiferes," p. 50, pi. 1, figs. 8, 9. 



There are a few specimens which may be referred to this species. 

 They are elongate, fusiform, the last few chambers smooth, the earlier 

 ones marked by short spines both on the border of the chamber and 

 some on the chamber faces. It seems best referred to this species of 

 d'Orbigny which he described in his South American work. It some- 

 what resembles Bulimina marginata, but seems to be distinct. 



