from. the Gault at Merstham. 37 
Sub-family MinroLininz. 
Test coiled on an elongated axis, in a single plane, or inequilater- 
ally ; chambers two in each convolution. 
Genus Sprronocutrna, D’Orbigny. 
Chambers in a single plane, all visible on both sides of the shell. 
Spiroloculina papyracea (Burrows, Sherborne, and Bailey).—This 
occurs in some abundance in the upper part of the Gault at Merstham. 
The species was described from a thin and much compressed form 
from the Red Chalk of Flamborough Head. 
S. nitida, d@’Orbigny.—Upper Gault of Merstham. Mid-Jurassic, 
recent. 
Genus MiLioxina. 
A Chambers inequilateral, coiled around the long axis of the shell 
in such a way that more than two (usually three or five) are visible 
externally. 
Miliolina venusta, Karrer, sp.—Upper Gault, Merstham. Gault, 
recent. 
M. Ferussacit, d’Orbigny, sp.— Upper Gault. Gault, recent. 
: 
| ; Family TExTULARIDE. 
) 
Tests of the larger species arenaceous, either with or without a 
perforate calcareous basis; smaller forms ‘hyaline and conspicuously 
perforated. Chambers arranged in two or more alternating series, or 
spiral, or confused; often dimorphous. 
Genus TRITAXIA. 
Monomorphous. Segments alternating in three rows. Aperture 
simple, produced, central. 
Tritaxia tricarinata, Reuss.—Upper Gault and bottom of cutting, 
Merstham. Lower Greensand, recent. 
T. pyramidata, Reuss.—Upper Gault. Gault, Chalk. 
Genus GAUDRYINA. 
Early segments triserial; aperture either textularian, or situated in 
a short terminal neck. 
Gaudryina oxycona, Reuss.—Upper Gault and bottom of cutting. 
Gault, Upper Chalk. 
Genus BuLIMINA. 
Test spiral, elongate, more or less tapering; often triserial. 
Bulimina affinis, dOrbigny—Upper Gault. Lower Greensand, 
_ recent. 
B. brevis, d’Orbigny.—Upper Gault. Lower Greensand, Chalk. 
B. Orbignyi, Reuss.—Upper Gault and bottom of cutting, Merst- 
ham. Gault, Chalk. 
P B. Presli, Reuss.—Upper Gault and bottom of cutting. Gault, Chalk. 
B. Presli var. sabulosa, Chapman.—-Upper Gault and bottom of 
cutting. Gault, Chalk Marl. 
_ B. obliqua, d’Orbigny.—Upper Gault. Gault, Chalk. 
pt 
A 
