152 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. XXXIV. 
species is larger than Sagraina dimorpha, the segments are smooth 
with the sutures flush, and the walls are not prominently perforated. 
It has been recorded at a limited number of localities in the Atlantic 
and Pacific in both shallow and deep waters. Rather common at 
Stations D. 4000, D. 4017, D. 4025, H. 4430, H. 4508, H. 4585, and 
H. 4694. : 
SAGRAINA DIMORPHA Parker and Jones. 
Uvigerina (Sagraina) dimorpha PARKER and JONES, Phil. Trans., CLV, 1865, 
p. 420, pl. xvii, fig. 18. 
A cosmopolitan species at moderate depths and more abundant than 
other species of the genus. Occurs at stations H. 4440, H. 4566, and 
H. 4694. , 
SAGRAINA IRREGULARIS Bagg, new species. 
Test elongate with irregularly set stout segments separated by septa 
which are but little depressed, giving a nodosarian aspect to the shell. 
The distal end is narrowly rounded without being acuminate, the 
anterior abruptly truncated with an invaginated siphonal tube at the 
end of which is the circular flaring aperture. This peculiar inset 
effect of the apertural tube, together with the irregularly set cham- 
bers, affords a ready means of separation of the form from Sagraina 
striata Schwager, which the species somewhat resembles. The stria- 
tions of the surface are sinuous, delicate and fairly persistent, but they 
branch in some places. The texture of the shell is fine semitrans- 
lucent hyaline calcareous matter and the tests are rather large and 
well built for the genus. Found in material from Stations D. 4025 
and H. 4571 and common at the former station. (See Plate V, figs. 
8-10.) 
Type.—Cat. No. 8200, U.S.N.M., Station 4025. 
Family GLOBIGERINID 4. 
Genus GLOBIGERINA. 
GLOBIGERINA AZQUILATERALIS Brady. 
Globigerina cequilateralis Brapdy, Quart. Journ. Microse. Sci., XIX, n. s., 
UST 1 Wl 
This symmetrically but loosely built Globigerina is one of the most 
abundant forms in all the material dredged in the 19 stations we 
examined. ‘The forms are large and beautiful and in various stages 
of growth. This is less common perhaps than Globigerina bulloides, 
but is of larger size. Not likely to be confused with G. cretacea, 
which is more involute, trochoid in its growth, and less common. 
Present in surface waters only of both the North and South Pacific; 
in bottom material also in the South Atlantic. Geological range, 
Cretaceous (7) to Recent. Abundant at every station except H. 4579, 
where it is apparently absent. 
