a. 
THE FORAMINIFERA OF THE RIVER DEE, 45 
and this would tend to make the Chester forms then as fine and 
well grown as those from Hilbre are now. So far as was seen 
this seemed to be the case, but the comparison was not carried 
far enough to place it beyond doubt. 
The subjoined catalogue has heen arranged in accordance 
with Dr, Carpgenrer’s “Introduction to the Study of the 
Foraminifera.” The debated question whether Gromia should 
or should not be included amongst Foraminifera is not of much 
moment in the present case. 
Some of the forms contained in the list are new to the British 
fauna, or otherwise possess points of considerable interest, and 
the following notes respecting them may be acceptable :— 
Gromia oviformis, and Gr. Dujardini. 
Gromia oviformis, Dujardin, 1835, Ann. des Sci. Nat., Sec. 2, vol. iii., 
p. 313; and vol. iv., p. 346, pl. 9, fig. 1. 
Gromia Dwardinit, Max Schulze, 1854, Ueber den Organ. Polythal., p. 55, 
pl. 7, fig. 1—7. 
Among collections of living Dee Foraminifera, Gromia is 
always largely represented, but its test is very rare indeed among 
shells obtained by the usual process of drying and floating from 
sand. This is owing to the great tenuity and delicacy of the test. 
which is little more than membranous, and does not possess 
sufficient strength to support its own weight. When living 
specimens are allowed to dry upon a slide, their tests collapse, 
and either assume hemispherical or scale-like forms, or become 
shapeless masses, each one surrounded by a glistening ring of 
dried sarcode. 
Cornuspira involvens, Reuss. 
Operculina involvens, Reuss, 1849, Denkschr. Akad. Wien., vol. i., p. 370, 
pl. xlv., fig. 20. 
Cornuspira involvens, Jones, Parker, and Brady, 1865, Monog. Crag 
Foram. p. 3, pl. iii., figs. 52-54. 
Messrs. Jones, Parker, and Brady (loc. cit.) admit Professor 
Reuss’s name for the thicker Cornuspire with rounded tube, 
G 
