2 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 89 



nearly at right angles, those with more chambers usually arranged 

 about the central one with the sutures radiating, chambers apparently in 

 communication with one another, distinct, slightly inflated on the dorsal 

 side ; sutures distinct, somewhat thickened, depressed on the dorsal 

 side ; wall very finely arenaceous, with much yellowish-brown cement, 

 the wall on the attached side very thin and translucent, apparently of 

 chitin and only the bases of the walls between the chambers marked 

 by arenaceous material ; apertures indistinct. Diameter, 0.35-0.40 mm ; 

 thickness, O.io mm. 



Holotype. — U.S.N.M. No. 26153, from 7 fathoms. Shannon Island, 

 oft' NE. Greenland. 



This peculiar small species has occurred at several stations in the 

 Greenland material and holds its characters very well. It occurs as 

 follows: 10-35 fathoms, Shannon Island. NE. Greenland; 10-35 

 fathoms, oft' Clavering Island, NE. Greenland. The specimens ap- 

 parently may easily become detached, as most of them were found in 

 that condition. This form is distinguished from Sorosphaera in its 

 attached form and definitely polygonal chambers. 



It is interesting to note that Heron-Allen and Earland have de- 

 scribed a very similar species from the Antarctic as Sorosphaera 

 depressa Heron-Allen and Earland, which in its characters should 

 belong to this new genus. It may, therefore, be known as Urnula 

 depressa (Heron- Allen and Earland). Their species is more irregular 

 in form and has more chambers than the Arctic one, so far as we 

 have seen. It also has accidental openings similar to those shown in 

 our figures. 



QUINQUELOCULINA FUSCA H. B. Brady var. GROENLANDICA, n. var. 

 Plate I, fig. 4 



Variety dift'ering from the typical in the much smoother test with 

 a much larger proportion of cement of a light gray color, and the test 

 usually more compressed. 



Holotype of variety. — U.S.N.M. No. 26151, from between Shan- 

 non Island and Hochstetter Foreland, NE. Greenland. 



When seen with the typical form of the species, this variety is very 

 distinctive. 



QUINQUELOCULINA ARCTICA, n. sp. 



Plate I. figs. 3a-c 



Test short and stout, very slightly longer than broad; chambers 

 angled, periphery truncate, sides with definite angles ; sutures distinct, 



