282 Mr. Henry B. Brady on 
neuilina spinulosa—its first recorded occurrence on the British 
a separate division a summary of the results of 
Messrs. Parker and Jones’s researches on the Foraminifera of 
the clay underlying the peat in the Fen district is given, in 
order to facilitate the comparison of the prehistoric fauna of 
this interesting area with that at present existing. It is com- 
from four columns in their “ Table of the North-Atlantic 
and Arctic Foraminifera, with their Distribution in other 
Seas" (Phil. Trans. vol. clv. p. 422, table vii.), headed re- 
spectively as follows :— 
bou ae pags clay). 
* 8. Subrecent es Bos a Lincolnsh 
* 4, Subrecent (clay). Wisbeach, Foie. (Valley of 
the Nen ne). 2? 
Setting aside the last column, which need not affect general 
Vues etim the groups into which the Table is divided have 
a purely geographical basis. Reference to physical conditions, 
jem as depth, proportionate admixture of fresh water, p: 
to the open sea, and the nature of the bottom, would giv 
a s Pure different classification, and one bearing more 
closely upon zoological relations. 
So divided, a first series would embrace those localities in 
which, either « owing to wide and easy communication with the 
ocean or a relatively small influx of fresh water, the Rhizo od 
fauna approximates in some degree to that of the littoral and 
laminarian zones. Seven of the columns might be comprised 
under this head, viz.:—s, Montrose Basin; c, Budle 
E, River s: Pe ' River Wansbeck ; H, River Blyth; 2, F rith 
of Forth; 14, Westport, Ireland. Columns 9, ' River 
Ribble, in Dd River Scheldt probably belong to the same 
series; but a deficiency of material for examination leaves 
some ie uncertainty with respect to them. The presence of Quin- 
queloculina fusca, Trochammina inflata, and Rotalia Beccartt, 
and the abundance of Polystomella striatopunctata and Nonio- 
nina depressula, may be accepted as the most eee 
indication of the constant admixture of fresh water; and thre 
of these seven localities, notwithstanding their marine affin ^ 
ties, answer in every particular to this test. In four of them 
Quinqueloculina fusca gives place to stronger marine gael ; 
and in one, Trochammina inflata is replaced by Lituola cana- 
riensis. On the other hand, the series presents a large number 
