Haplophragmium scitulum, is the most common species of the genus 
and was found at Stations H. 4502, H. 4566, H. 4567, and H. 4696. 
HAPLOPHRAGMIUM NANUM Brady. 
Haplophragmiuwm nanum BrRAvdy, Quart. Journ. Microse. Sci., XXI, n. s., 
1881, p. 50. | 
Somewhat similar to H. canariense, but with the segments more 
distinct and lobulated, and in its inequilateral development only upon 
the upper surface are all the segments visible. Recorded in the Chal- 
lenger report as characteristic of cold northern and southern latitudes 
and at depths of from about 50 to near 2,000 fathoms. Found only 
at Station H. 4694. 
HAPLOPHRAGMIUM SCITULUM Brady. 
s . . . ~ . rir 
Haplophragmium scitulum Brady, Quart. Journ. Microse. Sci., XXI, n. s., 
1881, p. 50. 
Test closely involute, nautiloid with depressed umbilici, arenaceous 
dark-brown test and rough exterior. Segments numerous, narrow, 
straight, but shghtly depressed septa. Forms somewhat resembling 
Cyclammina cancellata occur at Station 4508 and the septal lines are 
not quite so regular as in the type-specimens. ‘This species is closely 
related to H. latidorsatum, which is, however, less symmetrical, and 
has a thicker, coarser test and a more lobulated margin. 
Eleven localities for this species are reported in the Challenger 
records, eight of which were in the North Atlantic, 530 to 1,445 
fathoms, one in the South Atlantic, one in the South Pacific, and 
one from very deep water in the North Pacific. Present at Stations 
H. 4480, H. 4508, H. 4585, and H. 4696. Doctor Flint mentions it 
from the west coast of Cuba and the west coast of Patagonia, 93 to 
541 fathoms. 
Genus CRITHIONINA. 
CRITHIONINA PISUM var. HISPIDA Flint. 
Crithionina pisum var. hispida FLINT, Recent Foraminifera, 1899, p. 267, pl. 
Vinhie, 2. 
The genus Crithionina was established recently by A. Goes and 
made to include minute Foraminifera, which are largely constructed 
of sponge spicules and exceedingly fine gray arenaceous matter, and 
with a labyrinthic or cavernous, more or less spherical, chamber. 
This is undivided and the aperture is indistinct and divided. The 
hispid variety is even smaller than Crithionina piswm and is easily 
distinguished by its spinous sponge-spicule surface. There is appar- 
ently no visible aperture. 
