FORAMINIFEKA OF THE ATLANTIC OCEAN. 



9 



The above references include two Atlantic records, one from off 

 the southwest of Ireland, and one from the west of Scotland. I 

 have found no material in the western Atlantic Albatross collections 

 referable to this species. 



LAGENA CASTANEA Flint. 



Plate 1, figs. 12, 13. 



Luiiena castanea Flint, Rep. U. S. Nat. Mus., 1897 (1899), p. 307, pi. 54, 

 fig. 3. 



Description. — Test small, somewhat compressed, about as long as 

 broad, margin rounded and smooth, except at the lower side which 

 has a double keel, the two parts well separated from one another, 

 joining each other at the sides of the test, the upper half of the test 

 with no trace of a keel, apertural end slightly extended; wall smooth, 

 thin, transparent ; aperture with an entosolenian tube which in some 

 cases at least is spirally twisted. 



Length about 0.50 mm. 



Distrihiition.. — The type station for this species is in 896 fathoms 

 (1,639 meters), off Panama, in the Caribbean. I have had numerous 

 specimens from this same station, but have not seen it elsewhere in 

 the Albatross dredgings. 



Lagena castanea — material examined. 



LAGENA CATEXULATA (Williamson). 



Plate 1, fig. 11. 



Entosolenia squamosa Montagu, var. catenulata Williamson, Rec. Foram. 



Great Britain, 1858, p. 13, pi. 1, fig. 31. 

 Lagena catenulata Reuss, Sitz. Akad. Wiss. Wien, vol. 46, pt. 1, 1862 



(1863), p. 325, pi. 3, fig. 29.— Parker and Jones, Philos. Trans., vol. 



155, 1865, p. 352, pi. 16, fig. 7. — Balkwill and Millett, Journ. Micr., 



vol. 3, 1884, p. 78, pi. 1, fig. 9. 



Description. — Test subglobular, slightly longer than broad, the 

 basal end broadly rounded, the apertural end slightly drawn out; 

 surface ornamented by a generally polygonal ornamentation, in more 

 or less regular vertical rows, the test translucent. 



Length up to 0.25 mm. 



