FORAMINIFERA OF THE ATLANTIC OCEAN 



125 



CIBICIDES PSEUDOUNGERIANA (Cushman), rar. lO, new variety 



Plate 23, figures 1, 2 



Truncatulina tenera Flint (not H. B. Brady), Ann. Rep't. U. S. Nat. Mus., 

 1897 (1899), p. 334, pi. 77, fig. 4(?). 



Variety differing from the typical in having the dorsal side with a 

 flattened, much thickened area surrounded by a deep and conspicuous 

 channel, the sutures very strongly limbate and raised, and the 

 periphery usually more rounded. 



Holotype of variety (Cat. No. 21640, U.S.N.M.), off Fowey Light, 

 Fla., 40 fathoms. 



This variety is often very abundant in the Albatross material from 

 the northern part of the Gulf of Mexico, but was not found in the 

 Albatross dredgings in the more northern colder waters. It is not 

 common in the shallow water along the Florida coast. The micro- 

 spheric form is much spread out, but keeps the central, flattened boss. 



Cibicides pseudoungeriana, var. io — Material examined. 



CIBICIDES sp(?) 



Plate 24, figures 1 a-c 



There are numerous specimens which can not be placed in any of the 

 above species. One of these is figured here and may be found to be 

 of distinct character. It has no keel, and the two sides of the test are 

 very much alike. It much resembles d'Orbigny's "Truncatulina 

 vermiculata" from the coast of South America and the Falklands. 



Genus DYOCIBICIDES Cushman and Valentine, 1930 



Dyocibicides Cushman and Valentine, Contrib. Dept. Geol., Stanford 

 University, vol. 1, No. 1, 1930, p. 30. 



Genoholotype. — Dyocibicides biserialis Cushman and Valentine. 

 Test probably attached in the young, trochoid, plano-convex, 

 ventral side convex, dorsal side flattened, close coiled; the chambers in 



