FORAMINIFERA OF THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 



t.r ilistans, H. B. Brady. 



This rare species was obtained very sparingly and only in imperfect condition in the 

 material from Station 459. 



Distribution. Faroe Channel, 355 fathoms; off Kerguelen, 1570 fathoms; North 

 Pacific, where it is moderately common in the deepest waters. 



Iteophax pilulifera, H. B. Brady. 



Obtained at Stations 291, 301, 313, and 420 ; not common. A comparatively rare 

 species, peculiar to deep water. Known from off the south of Ireland, South Atlantic, 

 and Pacific. Depth, 437 to 2 ( JOO fathoms. 



Genus HORMOSINA, H. B. Brady. 



Hormosina normani, H. B. Brady. 



This large species, characterised by its fine texture, smooth surface of its chamber 

 walls, and dark brown cement, was obtained in fair abundance and of very large size at 

 Station 417. Several specimens from here measure -j - V mcn i n length, with the final 

 segment fully - x % inch across. It was not uncommon at Station 291, and rare at 

 Station 313. 



The species is rather an uncommon one, and is exclusively a deep-water form. 

 Wherever taken it is usually found in fair numbers, but owing to its delicate structure 

 it is seldom in perfect condition. 



Habitat. North Atlantic, 1380 and 1750 fathoms; Pacific (more abundant), 

 1100 to 2900 fathoms (Cliallenger). 



Hormosina globulifera, H. B. Brady. 



Stations 295 and 420, rare. Known from all the great ocean basins, in depths 

 between 440 fathoms and 2900 fathoms. 



Hormosina irregular is, sp. nov. (Plate I. figs. 13-15.) 



Test irregular ; composed of from two to five subspherical chambers, of which those 

 at the commencement are the smallest. They are all closely embracing. Apertures 

 small, each at the end of a definite tubular, somewhat cone-shaped neck (which is often 

 of a bright ferric-brown colour from the tip of the neck downwards) situated at the 

 apex or distal end of each chamber. Successive chambers may be placed at right 

 angles or obliquely to their predecessors. Walls finely arenaceous, thin ; surface smooth 

 both within and without. Colour, light pearly gray. Length, -J- inch (3 mm.) or more. 



This interesting form was taken sparingly at Station 420 only. 



(ROY. soc. ED IN. TRANS., VOL. XLIS., 1007.) 



