54 
ParkeRj on Miliola. 
long labour of observation and comparison, not only of tbe 
varieties of one species, but also of species with species, and 
of genus with genus. 
About five years since, being engaged in the study of 
Bryozoa and other small animals, I obtained a large quantity 
of clams of the East Indian seas, and among the debris 
obtained by cleaning their outer surface I collected an 
extensive suite of Foraminifera. 
These presented themselves in such vast numbers, and in 
such an endless variety of forms, that I have been enabled to 
study nearly every one of the chief groups of Foraminifera, 
as represented in these seas, to much advantage. 
From the series of illustrations I have prepared of these 
minute shells (which Dr. Carpenter has already referred to, 
as being likely soon to be brought forward), I propose to 
offer to the Society some characteristic forms of the Miliolites. 
This group presents a whiteness and opacity of the shell, 
and a more or less folded arrangement of the chambers, with 
usually a single large aperture. These white, chalk-like shells 
commence with a sub-globular, partially divided, primordial 
Fig. 1. — Young Miliolse, usually known as Adelosina and Uniloculina. 
a. b. c. 
a. Adelosina. h. Sectional view of Adelosina. c. Uniloculina, liiglilj 
magnified. 
chamber, around which the subsequent segments of the 
animal are successively arranged. 
Cornuspira. — The simplest form affected by the Miliolite 
family is that seen in Cornuspira, where the sarcode proceeds 
in a cylindrical wire-like shape, with a few irregular con- 
strictions, and is continued in a flat helical plane, to the 
extent of five, six, or more whorls. The shell does not form 
a coiled tube, but a half tube, the shelly cover of one whorl 
resting by its lateral edges on the outside of the former whorl. 
This condition of the shell-w all is common to all theMiliolitidse, 
the chambers being half- tubes or tent-like structures. 
All the specimens I have yet collected of Cornuspira appear 
