FORAMINIFERA OF THE ATLANTIC OCEAN. 



123 



Distribution. — The type specimens of this species described by 

 Flint were from Albatross stations in the northern part of the Gulf 

 of Mexico in 196 and 210 fathoms (359 and 384 meters). I have had 

 material from this same region and from two other stations, one off 

 the southern tip of Florida, the other off the coast of Georgia. This 

 is a common range for numerous species. 



In some ways the species resembles the young of Vaginulina 

 spinigera, but the specimens are always small and more Gristellaria- 

 like in every way. 



Cristellaria limbata — material examined. 



CRISTELLARIA SUBACULEATA, new species. 



Plate 34, fig. 2. 

 Cristellaria aculeata H. E. Brady (not D'Orbigny), Rep. Voy. Challenger, 

 vol. 9, 1884, p. 555, pi. 71, figs. 4, 5. 



Description. — Test slightly longer than broad, somewhat com- 

 pressed, periphery with a narrow thin keel, test becoming slightly 

 uncoiled in the later portion; chambers comparatively few, about 

 8 in the last-formed coil, distinct, but not inflated; sutures marked 

 by lines of raised bead-like prominences, the surface of the test 

 between with finer more spinose projections, apertural face truncate, 

 smooth, the sides with a raised keel; aperture projecting, rather 

 broad, radiate, at the peripheral angle of the last-formed chamber. 



Length up to 1.6 mm. 



Distribution. — Type-specimen (U.S.N.M. Cat. No. 18914) from 

 Albatross station D2377, in 210 fathoms (384 meters), in the 

 northern part of the Gulf of Mexico. Brady gives two records for 

 this species — off Culebra Island, 390 fathoms (713 meters), and 

 off Sombrero Island, 450 fathoms (823 meters). The only specimen 

 I have had which is identical with Brady's is from the type station. 

 This has the typical surface ornamentation as figured by Brady and 

 seems distinct from the following variety. The species seems to 

 be limited to the tropical western Atlantic. However, Earland^^ 

 records one small and immature specimen and one large shell from 

 Bognor, Sussex, England. 



88 Journ. Quekett Mlcr. Club, ser. 2, vol. 9, 1905, p. 216. 



