THE 
GEOLOGICAL MAGAZINE. 
NEW. SERIES. (DECADE. [ils WVOlo uve 
No. XI—NOVEMBER, 1888. 
@rE eis PACs: AS och Calne Se 
—— 
J.—NotTE ON soME SILURIAN LAGENZE. 
By Henry B. Bravy, LL.D., F.R.S. 
(PLATE XIII.) 
E are in possession of so little accurate information concerning 
Foraminifera of pre-Carboniferous age, that any contribution 
to the knowledge of the subject, however insignificant it may of 
itself appear, has a very distinct value. The only notices of pre- 
Carboniferous examples of the genus Lagena hitherto published 
occur in a provisional list of Microzoa drawn up by Professor T. 
Rupert Jones, F.R.S., and appended to a paper by Mr. J. Smith of 
Kilwinning, “On a Collection of Bivalved Entomostraca and other 
Microzoa from the Upper-Silurian Strata of the Shropshire District,” 
in the Grotocican Macazine for February, 1881; and in a brief 
allusion to the same specimens in the “ Report on the Challenger 
Foraminifera” (p. 449, etc.); but in neither case is the notice 
accompanied by any details. 
Recently, through the kindness of my friend Prof. T. Rupert 
Jones, I have had the opportunity of examining a number of speci- 
mens, similar in many respects to those just referred to, collected by 
the late Dr. H. B. Holl in a neighbouring county and from beds 
approximately of the same age, and have had permission to use 
them in any way needful for their elucidation. Mr. J. Smith has 
also been good enough to lend me his original mountings with the 
same liberty as to their employment. JI have thus been enabled to 
make a tolerably complete examination of the whole, the results of 
which are embodied in the following notes. 
Prof. T. R. Jones’s collection consisted of between forty and fifty 
specimens, typical examples of which are represented in Figs. 1-4 
of the accompanying Plate. They were obtained from the base of 
the Wenlock Shale and from the shales of that part of the Lower- 
Wenlock Series known as the Woolhope Limestone; all from the 
Wych, Malvern. 
The specimens exhibit considerable range of contour; some few 
are nearly globular, but the larger number are pyriform, the inferior 
end of the test broad and rounded, the upper portion more or less 
tapering, as shown in Fig. 1. Some of the shells are perceptibly 
DECADE III.—VOL. V.—NO. XI. 31 
