48 BULLETIN 100, UNITED STATES NATIONAL MUSEUM, 



Genus SACCAMMINA W. B. Carpenter, 1869. 



SACCAMMINA SPHAERICA G. O. Sara. 



Saccammina sphaerica M. Sars, Forh. Vid. Selsk. Christiania, 18C8 (18C9), p. 248 

 (nomen nudum). — G. 0. Sars, Forh. Vid. Selsk. ChriBtiania, 1871, p. 250. — 

 H. B. Brady, Kep. Voy. Challenger, Zoology, vol. 9, 1884, p. 253, pi. 18, figs. 

 11-15, 17.— CusHMAN, Bull. 71, U. S. Nat. Mus., pt. 1, 1910, p. 39, figa. 33-36 

 (in text); Bull. 104, U. S. Nat. Mus., pt. 1, 1918, p. 44, pi. 16, figB. 4-5; pi. 

 19, figs. 2-5. 



The typical form of this species has been seen but twice in this lot 

 of material. It occurred at Albatross station D5260, off southeastern 

 Mindoro, 234 fathoms (428 meters), bottom temperature 51.4° F. 

 (10.7° C), and D5447, off the eastern coast of Luzon, 310 fathoms 

 (567 meters), bottom temperature 45.3° F. (7.2° C). 



Saccammina sphaerica — Material exaviined. 



SACCAMMINA SPHAERICA G. O. Sars, var. CATENULATA Cusbman. 



Plate 2, fig. 8. 



Saccammina sphaerica H. B. Brady (part), Rep. Voy. Challenger, Zoology, vol. 9, 



1884, p. 253, pi. 18, fig. 16. 

 Saccammina sphaerica, var. catenulata Cushman, Proc. U. S. Nat. Mue., vol. 51, 



1917, p. 652. 



Description. — Wall of test like that of typical S. syJiaerica in 

 structure, but several chambers present, joined together in a linear 

 series, the largest chamber adherent. 



One specimen almost exactly like the figured specimen of Brady 

 was found at Albatross station D5637, Bouro Island, 700 fathoxns 

 (1,280 meters). This seems to be different from the typical S. 

 sphaerica and may be worthy of more than varietal rank. The sev- 

 eral chambers attached by the largest make it a very different test. 

 In the figure given by Brady a pebble forms the base for attach- 

 ment; in this case the specimen is attached to another foraminifer. 



Saccammina sphaerica, var. catenulata — Material examined. 



