NO. 9 NEW ARCTIC FORAMINIFERA CUSHMAN 5 



tinct, slightly inflated, especially in the latter half of the last-formed 

 coil, 10 to 12 or more in number; sutures distinct, usually depressed, 

 occasionally with a slightly beaded appearance in the early portion, 

 retral processes numerous and very short, often hardly visible ; wall 

 smooth, very finely perforate, polished ; aperture formed by numerous 

 small pores along the base of the apertural face of the chamber. 

 Length, 0.90 mm ; thickness, 0.35 mm. 



Holotype. — U.S.N.M. No. 26142, from Labrador. 



This species is well developed at several stations as follows : ofif 

 camp. Cape David Gray, Shannon Island, NE. Greenland ; 7 fathoms, 

 near glacier, between Clavering Island and Homes Foreland, NE. 

 Greenland; near Shannon Island, NE. Greenland; 10-35 fathoms. 

 Shannon Island, NE. Greenland ; and Fox Basin, latitude 66°43' N. 

 It somewhat resembles the young stages of £. arcticum, but seems to 

 be distinct from that species. It is named in honor of Capt. Robert A. 

 Bartlett, whose collections have added much to the knowledge of 

 Arctic foraminifera. 



ELPHIDIUM FRIGIDUM, n. sp. 



Plate I, figs. Sa,b 



Test usually completely involute, periphery rounded, sides flattened ; 

 chambers distinct, slightly inflated, the last ones distinctly so, final 

 chambers often enlarged and projecting beyond the general contour 

 of the test ; sutures distinct, depressed, with very numerous short 

 retral processes ; wall thin, very distinctly perforate, the last-formed 

 chambers often having distinct elongate markings ; aperture consisting 

 of numerous fine pores at the base of the apertural face of the last- 

 formed chamber. Length, 0.90 mm ; thickness, 0.25 mm. 



Holotype. — U.S.N.M. No. 26143, from 25 fathoms, center of Fox 

 Basin. 



Except for one station off Greenland, 10-35 fathoms, near Shannon 

 Island, the species has been found only in the stations from Fox Basin 

 as follows : 34-37 fathoms, SE. corner of Fox Basin, latitude 

 66°46' N.. longitude 69°i5'W. ; and Fox Basin, latitude 66°43' N., 

 longitude 80° 7' W., where it is often common. It shows considerable 

 variation in the shape of the last-formed chamber, which is much ex- 

 panded in the adult and often longer than the others so that it projects 

 beyond the general outline of the test. The apertural face of the 

 chamber often has a peculiar overlapping border at the base extending 

 out somewhat beyond the base of the chamber both along the median 

 line and also toward the umbilical ends. The peculiar arrangement of 



