*KT. 25 FORAMINIFERA CUSHMAN AND KELLETT H 



the surface, slightly limbate, on the ventral side radial, depressed; 

 wall smooth, very finely perforate; aperture ventral, at the base of 

 the chamber between the periphery and the umbilicus. 



Diameter, 0.40 mm.; thickness, 0.25 mm. 



D'Orbigny gives the following localities, common on the coast of 

 Peru near the island of San Lorenzo, harbor of Callao and Arica; 

 in sands from the island of Puna, at the mouth of the Rio de Guayaquil 

 also at Valparaiso, Chile; Cobija, Bolivia (now Cobija, Chile), and 

 at Payta and Acapulco, Peru. D'Orbign}^ says that it is probably to 

 be found along the whole coast from 34° S. latitude to the equator. 



In our material it was common at Lota, Chile, less so at Corral, 

 Chile, and Payta, Peru. 



This is a very distinctive species excellently illustrated by d'Orbigny. 

 It is probably the same in part at least as the recent species referred 

 by Brady to the cretaceous species Rotalia Jcarsteni Reuss. In the 

 Challenger report there is a small species recorded from numerous 

 stations about the southern part of South America and a larger very 

 similar one from the Arctic. Although the figures of these two in 

 the Challenger plates look very much alike, it would seem to be worthy 

 of interest to compare closely, specimens from these widely separated 

 areas. 



EPONIDES REPANDA (Fichtel and Moll) 



Plate 4, figures 7 a-c 



There are specimens from Santa Elena, Ecuador, that are very 

 typical of this species as figured by Brady in the Challenger report, 

 and by other authors. Whether or not these are the same as the 

 original species of Fichtel and Moll is a matter to be left for further 

 studies of specimens from the type localities. It is a thick-walled 

 species of good size and evidently limited in its distribution in 

 this area, not occurring in the collections from the more southern 

 localties. 



EPONIDES MERIDIONALIS. new species 



Plate 4, figures 4, 6 



Test trochoid, nearly circular, nearly equally biconvex, periphery 

 in the young somewhat rounded, in the adult acute and carinate; 

 chambers very distinct but not inflated, gradually increasing in size 

 as added, about 12 in the last-formed coil in the adult; sutures dis- 

 tinct, limbate and with a raised ornamentation, oblique and slightly 

 curved dorsally, nearly radiate ventrally; wall finely perforate, orna- 

 mented on the dorsal side by the raised sutural thickening and the 

 thickened peripheral border of the chambers, on the ventral side by 

 the beaded or raised suture lines often ending in a series of small 

 knobs in the center and in some specimens with thickly scattered 



