FORAMINIFERA OF THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 149 



Sub-family FULYMORPHININ^. 



Genus POLYMORPHINA, d'Orbigny. 



Polymorphina inflata, sp. nov. (Plate II. figs. 14-16.) 



Test elongate, forming a somewhat obscure triserial spire, having five visible 

 chambers tapering to a point at the inferior extremity ; oblong and more or less inflated ; 

 the last chamber much the largest and more inflated than the rest ; compressed trans- 

 versely ; each chamber separated by excavated sutures. Aperture a round opening 

 encircled by a number of radiating grooves near the centre of the final chamber ; 

 furnished with a short entosolenian tube extending into the cavity of the last chamber. 

 Length, T ^ inch (17 mm.). 



The erect position of the chambers, inflated contour of the test, and separated 

 excavated suture lines are sufficient to distinguish this species from its near allies ; 

 the chamber walls are thin, smooth, and beautifully transparent. Polymorphina 

 inflata was found sparingly at Station 346, 56 fathoms. 



Polymorphina angusta, Egger. 



This species (rare) was taken at four stations, 342, 346, 447, and 459. It is 

 a widely distributed species, and has been found in the North and South Atlantic 

 and the North and South Pacific, but is for the most part a deep-sea form, with a range 

 of depth in these oceans of 1000 to 2400 fathoms, although it has been collected on 

 several occasions in shallow water. 



Polymorphina gibba, d'Orbigny. 

 Obtained (rare) at one station only, 342, 1946 fathoms. 



Polymorphina seguenzana, H. B. Brady. 

 Taken at Station 459, 1998 fathoms (rare). 



Polymorphina oblonga, d'Orbiguy. 



Obtained at Station 346, 56 fathoms. This species has been taken in the North 

 Pacific as low down as 2050 fathoms. 



Genus UVIGERINA, d'Orbigny. 

 Uvigerina brunnensis, Karrer. 



I have obtained this form (rare) in the material from Station 342, 1946 fathoms. 

 U. brunnensis is a rare species in the living state ; its only known records are 

 from Christmas Harbour, Kerguelen, 120 fathoms; and off the western shores of 

 Patagonia, 245 fathoms. 



(ROY. SOU. EDIN. TRANS., VOL. XLIX., lO'2'.i.) 



