FORAMINIFEEA OF THE ATLANTIC OCEAN. 



45 



Bescriftion. — Test elongate, elliptical in front view, nearly circu- 

 lar in cross section, slightly compressed, ends broadly rounded, 

 nearly equal ; wall thin, transparent, smooth ; aperture broadly ellip- 

 tical, central, with a comparatively short entosolenian neck. 



Length 0.40 mm. 



Distribution. — Brady had this species from Challenger station 5 

 in the deep part of the North Atlantic, in 2,740 fathoms (5,011 

 meters). Egger records it from ojff West Africa and Heron- Allen 

 and Earland record a single typical specimen from Killary Bay, Ire- 

 land, and two specimens from off the west of Scotland. 



, LAGENA PARADOXA Sidebottom. 



Plate 8, fig. 11. 



Lagena foveolata Reuss ? var. paradoxa Sidebottom, Journ. Quekett Micr. 

 Club, vol. 11, 1912, p. 395, pi. 16, figs. 22, 23. 



Description. — Test flask-shaped, elongate, the basal end broadly 

 rounded and the greatest width near the base, thence tapering gradu- 

 ally to the apical end, which is furnished with a short, cylindrical, 

 slender neck with a slight phialine lip, the base of the neck rather 

 abruptly joined with the test; wall of the test compound, the outer 

 surface longitudinally costate, with fine crossbars between them, the 

 inner layer more or less spinose connecting it with the surface wall, 

 wall opaque. 



Length up to 0.20 mm. 



Distribution. — Sidebottom originally described this form from the 

 Southwest Pacific. I have specimens from four Albatross stations 

 which are very similar to those described and figured by Sidebottom. 

 They are not as long nor quite so tapering as his specimens and the 

 costae not so pronounced. They have a similar compound wall, and 

 the general manner in which the neck is attached to the body of the 

 test is also strikingly similar. It seems worth}' of specific rank. 



W^orn specimens show the two layers, the outer one of which often 

 flakes off from the under one. 



Lagena paradoxa — material examined. 



