Brackish-water Foraminifera. 303 
third, though of extreme rarity, has been found by Mr. W. K. 
arker in a shallow-water mud at Eastbourne, Sussex. 
bigny's figures of B. plicata are, as usual, somewhat 
diagrammatic, designed from the theoretical morphology of 
the shell rather than its actual appearance. 
Discorbina rosacea, D'Orbigny, sp. 
Rotalia rosacea, D'Orbigny (1826), Ann. Sci. Nat. vol. vii. p. 273. no, 15, 
Modéle no. 39. 
Noticed only in two or three of the more nearly marine ga- 
therings in the north; scarcely at home in brackish water. 
Discorbina globularis, D’Orbigny, sp. 
Rosalina globularis, D’Orbigny (1826), Ann. Sci. Nat. vol. vii. p. 271. 
no. 1, pl. 13. figs. 1-4, Modèle no. 69, 
Frequent in the northern estuaries and in Portree Harbour, 
but not hitherto observed living at any point in the Fen area, 
Planorbulina mediterranensis, D'Orbigny. 
Planorbulina mediterranensis, D’Orbigny (1826), Ann. Sci. Nat. vol. vii. 
p. 280, no. 2, pl. 14. figs. 4-6, Modéle no. 79. 
Occurs generally in the Northumbrian estuaries, the Clyde, 
and Montrose Basin. Found sparingly in the river Bure at 
Yarmouth and in Breydon Water. 
Truncatulina lobatula, Walker & Jacob, sp. 
Nautilus lobatulus, Walker & Jacob (1798) (fide Kanmacher), Adams's 
Essays on the Microscope, 2nd. ed. p. 642, pl. 14. fig. 36. 
Found in localities pertaining to each of the three divisions 
of the Table, but especially common in the Northumbrian es- 
tuaries. In the Fens it has only been observed in Oulton 
Broad and the river Bure at Yarmouth. 
Truncatulina refulgens, Montfort, sp. 
Cibicides refulgens, Montfort (1808), Conchyl. Systém. vol i. p. 122, 
3le genre. 
Truncatulina refulgens, is the conical variety of the last- 
named species, usually inhabiting deeper water. it 1s not 
Rotalia Beccarii, Linné, sp. 
Nautilus Beccarii, Linné (1767), Syst. Nat. 12th ed. p. 1162. no. 276, 
Professor Williamson’s figures (Rec. For. Gt. Br. pl. iv. 
