4 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 89 



The thinness of the wall gives a very different appearance from that 

 of the chalky white opaque wall of typical Cornuspira. It is found 

 in the Greenland collections at the following localities : NE. Green- 

 land ; off camp, Cape David Gray, Shannon Island, NE. Greenland ; 

 67 fathoms, off camp. Cape David Gray, Shannon Island, NE. Green- 

 land ; and 10-35 fathoms, off Clavering Island. NE. Greenland. 



ELPHIDIUM GROENLANDICUM, n. sp. 



Plate I, figs. 10a, b 



Test large, close coiled, completely involute, the periphery subacute ; 

 chambers numerous, 15 or more in the final coil in the adult, of uni- 

 form shape throughout and increasing only slightly in size, the last 

 chambers occasionally very slightly inflated ; sutures distinct, very 

 slightly if at all depressed, with a sigmoid curve and numerous retral 

 processes, often 15 or more along a single suture; wall smooth, very 

 finely perforate, polished, the umbilical region often with a clear area ; 

 aperture consisting of numerous pores along the base of the apertural 

 face of the last-formed chamber. Diameter, up to i.oo mm. 



Holotype. — U.S.N.M. No. 26141. from Bass Rock, NE. Green- 

 land. 



This is a large fine species, occurring only in the Bartlett collection 

 from Greenland and not appearing in the collections from Fox Basin. 

 It has occurred at numerous stations and is often common as follows : 

 off Clavering Island, near glacier, NE. Greenland ; 7 fathoms. Shan- 

 non Island, off NE. Greenland ; 7 fathoms, fiord between Clavering 

 Island and Homes Foreland, NE. Greenland ; off camp, Cape David 

 Gray, Shannon Island, NE. Greenland ; 7 fathoms, near glacier, be- 

 tween Clavering Island and Homes Foreland, NE. Greenland ; near 

 Shannon Island, NE. Greenland ; 67 fathoms, oft' camp. Cape David 

 Gray, Shannon Island, NE. Greenland ; Koldenian Sound, NE. Green- 

 land; 7 fathoms, off Cape Stosch, Gotthaab Island, Hudson Land, 

 NE. Greenland ; and Wollaston Foreland, 5 miles off Cape Borlase 

 Warren, NE. Greenland. It holds its characters very well through- 

 out the different stations. This may possibly be the species referred 

 by authors to " Polystomella siihnodosa" from Arctic material. 



ELPHIDIUM BARTLETTI, n. sp. 



Plate I, figs. ga,b 



Test almost completely umbilicate but leaving a slight uncoiled por- 

 tion at the umbilical area, periphery broadly rounded ; chambers dis- 



