72 BULLETIlsr 104^ UNITED STATES NATIONAL MUSEUM. 



and Pearce\- records two specimens from the Antarctic in 1,946 

 fathoms. 



This sm^ali species is either very rare, as would seem from the records, 

 or has been overlooked on account of its small size. All three stations 

 are in deep-water. It has not been met with in the North Atlantic 

 material. 



THURAMMINA CARIOSA Flint. 



Plate 28, fig. 1. 



Thurammina cariosa Flint, Ann. Rep. U. S. Nat. Miis., 1897 (1899), p. 278, pi. 22, 



fig. 2. 

 Thyrammina cariosa Rhumbler, Arch. Prot., vol. 3, 1903, p. 238, fig. 69 (in text). 



The original description of this form is as follows : 



Spherical; surface rough, as if eroded; walls rather thick, cavernous; cavity globu- 

 lar, smooth; apertures not tubular; color a dirty brown. Differs from T. favosa in 

 the thicker walls and coarser structure, the eroded rather than reticulated surface, the 

 cavernous walls and the nontubular orifices. 



Diameter, about 1 mm. (one-twenty-fi_fth inch). 



Distribution. — Flint described this species from two Albatross 

 stations in the northern part of the Gulf of Mexico, D2385 in 420 and 

 D2394 in 730 fathoms. The material from both of these I have seen 

 and additional material from D2571 in 1,356 fathoms southeast of 

 Georges Bank. Tlie material from this last station is smaller and 

 whiter than from the Gulf of Mexico but the surface is very similar. 



THURAMMINA FAVOSA Flinl. 



Plate 28, figs. 2, 3. 



Thurammina favosa Flint, Ann. Rep. U. S. Nat. Mus., 1897 (1899), p. 278, pi. 21, 



fig. 2.— MiLLETT, Journ. Roy. Micr. Soc, 1904, p. 608, pi. 11, fig. 7. 

 Thyrammina favosa Rhumbler, Arch. Prot., vol. 3, 1903, p. 236, fig. 65 (in text). 



This form is described as follows : 



Test spherical; walls very thin, arenaceous, brown; surface ornamented with a 

 network of thin prominent ridges extending uniformly over the whole test, forming 

 hexagonal pits; cavity smooth; apertures numerous, small, at the end of short 

 tubular processes from some of the points of junction of the ridges. 



Diameter, about 0.8 mm. (one-thirtieth inch). 



Distribution. — Flint described this species from two Albatross 

 stations in the nortliern part of the Gulf of Mexico, D2374 in 26 and 

 D2394 in 420 fathoms. I have found very typical material also from 

 D2751 in 687 fathoms in the Carribbean Sea just west of the Leeward 

 Islands. It also occurred at D2505 off Nova Scotia. These are very 

 typical. 



^lillett records the species from several stations in the Malay 

 Archipelago, but his figured specimen is very much more coarsely 

 reticulate than the types and contain but a few facets. He makes the 

 follomng note of his material: ''* * * There is a certain amount 

 of flexibility about the test reminiscent of the vegetable kingdom to 



