66 HENRY B. BRADY. 
Tr. margaritifera, noy.—Shell spiral; slightly convex or 
nearly flat on its superior surface, convex on the infe- 
rior; margin sharp, subcarinate, lobulate. Chambers 
very numerous, all visible on the superior face, the last 
convolution only on the inferior. Sutural lines on both 
sides marked by rows of exogenous beads of clear shell- 
substance, largest near the centre of the test. Diameter, 
zy inch (1:26 mm.). 
Tr. soluta, nov.—Shell elongate, compressed; composed of 
a line of inequilateral segments, arranged spirally, the 
earlier ones embracing, the later ones free. Periphery 
sharp, furnished with a tubulated fringe or keel, and 
the surface of the shell otherwise more or less orna- 
mented with tubercles. Aperture a curved slit in the 
line of the periphery at the extremity of the last cham- 
ber, furnished with a phialine lip. Length, ~> inch 
(0°36 mm.). 
PULVINULINA, Parker & Jones. 
P. procera, nov.—Shell spiral ; superior surface forming an 
elevated cone with rounded apex ; inferior, flat or trun- 
cate. Chambers numerous, about six in the last convo- 
lution, oblique ; segmentation usually obscure, except 
on the inferior aspect, where the sutures and periphery 
are more or less limbate. Aperture, an arched slit on 
the inferior side of the last segment, near the umbilicus. 
Diameter, =; inch (1°1 mm.). 
PoLysToMELLA, Lamarck. 
Polystomella imperatriz, nov.—Test spiral, symmetrically 
discoidal, complanate; peripheral margin rounded or 
subangular, furnished with several (three to six) stout 
spines. Septal ridges only slightly limbate, marked 
with pitted depressions; retral bars very numerous, 
delicate, irregular, sometimes branching. Diameter, 
= inch (1°7 mm.). 
P. verriculata, nov.—Test spiral, much depressed; sides 
_ flattened; margin angular or slightly rounded. Septal 
ridges and retral bars forming a coarse, more or less 
regular, raised network, covering the surface of the 
shell. Diameter, 3; inch (0°5 mm.). 
CycLocLyPEus, Carpenter. 
Cycloclypeus Guembeliana, nov.—A single specimen, nearly 
complete, of a discoidal foraminifer referable to Car- 
penter’s genus Cycloclypeus, and a fragment of a second 
a ae 
