Mr. H. B. Brady on some Arctic Horaminifera. 413 
DiscorBinA, Parker & Jones. 
60. Discorbina Berthelot?, D’Orbigny, sp. 
Rosalina Bertheloti, D’Orbigny, 1889, Foram. Canaries, p. 135, pl. i. 
fios, 28-30. 3 
Novaya-Zemlya Sea, Station 500 (A); very rare. The 
specimens all very small, and similar in character to those 
found off the Shetland Islands and at some other points to 
the north of Great Britain. 
61. Discorbina Wrightii, sp. nov. 
(ell, ROMs ities @ a5 Oy G,) 
Discorbina parisiensis, Wright (in part), 1877, Proc. Belfast Nat. Field- 
Club, 1876-77, App. p. 105, pl. iv. fig. 2 a, 8, e. 
Test free, trochoid; superior surface subconical ; inferior 
flat; peripheral margin subangular or somewhat rounded, very 
slightly excavated at the sutural lines. ‘The shell consists of 
about three convolutions, the whole of which are visible on 
the superior surface, the final one only on the inferior. In- 
ferior surface ornamented with beaded lines radiating from 
the umbilicus. Segments numerous, seven or eight in the 
final convolution ; septation of the earlier portion indistinct. 
Diameter #5 inch (0°5 millim.). 
Mr. Wright, in his careful paper on the “ Recent Fora- 
minifera of Down and Antrim” (loc. cit.), describes and 
figures certain small Discorbine occurring in shallow water 
in the north of Ireland under the general name of D. parist- 
ensis, D’Orb. The figures represent two varieties, differing 
considerably in contour and in minor characters, which there 
was reason to think were only individual modifications of the 
same species. Of the close affinity of the two there can be no 
question ; and that the thinner specimens have all the essential 
characters of D’Orbigny’s Modéle no. 88 is equally beyond 
doubt; but further research has led to the conclusion that it 
will be convenient to recognize the conical form, which is 
more particularly an inhabitant of northern seas, by a dis- 
tinctive term; and under these circumstances it is proper to 
associate Mr. Wright’s name with the species. 
Discorbina Wrightit is very rare in the Novaya-Zemlya 
Sea; and a single young specimen has been found in the 
Matyushin Shar. It is not uncommon on the north-eastern 
coast of Ireland, and is occasionally met with in deeper water 
in the North Atlantic. 
