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length than is usual in Connemara specimens, and the tex- 
ture a little more glassy ; its chief peculiarity however is in 
the neck, w hich is short and formed of two distinct portions, 
the first directly continuous with the body and having an 
outline similar to that of the lower part of the neck of Lagena 
abruptly cut short, and the second a cylindrical tube of com- 
paratively small diameter continued from the middle of it. 
The first portion is ornamented with three circles of hexa- 
gonal reticulations, which are continuous below by their 
inferior angles with the longitudinal costae of the body, and 
present an interesting combination of the superficial charac- 
ters of E. costata and E. squamosa.— 2. Entosolenia Montagui 
is a squamous form, but differs from the named varieties of 
E. squamosa in having its surface really covered with a pat- 
tern like scales instead of with raised reticulations. Well 
developed specimens are not at all flattened, though many 
are found as if crushed, and they then present an appearance 
resembling a dried fig. ; the true shape however is a perfect 
oval, full and well rounded at the smaller end, and from the 
middle of this projects a short smooth cylindrical tube. With 
a low power of the microscope, the whole surface of the body 
appears to be made up of small almost square facets arranged 
in distinct longitudinal rows, but when these are more highly 
magnified each flattened surface is seen to rise a little ante- 
riorly, and to have the front border rounded so as to give 
exactly the appearance of a covering of scales. 
So far as I have yet seen the forms of Dentalina and 
Cristellaria are very rare in this sand, Nonionina JefFreysii 
and elegans are also scarce, but Patellina corrugata, which 
is described as a rare species, is not very uncommon, and 
some remarkably fine specimens have been met with. All 
the forms of Rotalina occur excepting two, and there are 
several undescribed ones in addition ; at present I have seen 
only one specimen of the rare species, R. inflata. There 
are two distinct varieties of Globigerina, one with the 
