Lae PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. XXXIV. 
Pacific were in depths of 95, 2,050, and 2,900 fathoms respectively. 
The species is therefore a deep-water form. It is not known as a 
fossil. Rare at Station H. 4567, depth 1,307 fathoms. 
VERNEUILINA SPINULOSA Reuss. 
Verneuilina spinulosa Reuss, Denkschr. Akad. Wiss. Wien, I, 1849, p. 347 
pl. xuivil, figs. 12 a-—c. 
This species, known first from the Cretaceous chalk, is best de- 
veloped in tropical and subtropical shallow waters. Its bathymetric 
range, however, is from a few fathoms down to 2,300. Hxamples of 
this interesting foraminifer were at Stations D. 4017, D. 4025, H. 
4508, H. 4694, and H. 4696. 
Genus BIGENERINA. 
BIGENERINA ARENACEA Bagg, new species. 
Test very large, sometimes measuring nearly an eighth of an inch 
in length, strongly compressed and complanate, built of coarse arena- 
ceous and glauconitic material of a prevailing gray color. 
The segments are at first biserial, later nodosarian. There are four 
or five of these uniserial segments and they comprise about one-half 
the shell in length. The test is symmetrically developed with nearly 
straight even sides obtusely rounded and with the aboral end broadly 
rounded, the entire form resembling in a general way Bigenerina 
pennatula (Batsch), but lacking the angular keeled margin and:also 
being somewhat more compressed. The segmentation is regular, 
much more regular than in Bigeneria capreolus (VOrbigny), and in 
the uniserial portion is as symmetrical as in typical Prondicularia 
types. The chambers are narrow and even, separated by broad 
thick shghtly raised septa which are curved or arched upward at the 
center and at the oral end form a wedge-shaped extremity. The 
aperture is a median, oval, and narrow slit. The best specimens of 
this large arenaceous species were trom stations between D. 3900 and 
D. 4000. (See Plate V, figs. 4-6.) 
The type is Cat. No. 8196, U.S.N.M., from hydrographic Sta- 
tion 4508, Albatross. I also recognize the species at Stations D. 4174 
and H. 4566. 
Genus PAVONINA. 
PAVONINA FLABELLIFORMIS d’Orbigny. 
Pavonina flabelliformis D’ORBIGNY, Ann. Sci. Nat., VII, No. 1, 1826, p. 260, 
pl. x, figs. 10, 11, modéle No. 56. 
Pavonina is an interesting unusual genus represented by a single 
species. The early chambers are smal] and textularian and later be- 
come uniserial and unfolded, forming a fan-like test. The aperture 
