Brackish-water Foraminifera. 285 
Biloculina elongata, D'Orbigny. 
poe elongata, D'Orbigny (1826), Ann. Sci. Nat. vol. vii. p. 298. 
no. 4, 
Estuaries of the Wansbeck and Blyth, and in the river Bure 
at Yarmouth; in all cases rare. 
Biloculina depressa, D'Orbigny. 
Biloculina depressa, D'Orbiguy (1826), Ann. Sci. Nat. vol. vii. p. 298. no. 1, 
Modèle no. 91. 
The compressed, carinate, feebler form of Biloculina occurs 
sparingly in four out of our five Northumbrian gatherings ; 
elsewhere it has not been met with. 
Sptroloculina limbata, D'Orbigny. 
Spiroloculina limbata, D'Orbigny (1826), Ann. Sci. Nat. vol. vii. p 299, 
no. 9; Soldani, Testaceographia, vol. iii. p. 229, pl. 154. fig. Ah, and 
pl. 155. fig. ij. 
Budle Bay and Blyth; rare. 
Triloculina trigonula, Lamarck, sp. 
Miliolites trigonula, Lamarck (1804), Ann. Mus. vol. v. p. 351. no. 3; 
(1822) Anim. s. Vert. vol. vii. p. 612. no. 3. 
The “ Triloeuline " Miliole found in brackish water belong 
almost exclusively to the elongate emaciated variety (T. ob- 
longa) ; nevertheless one or two well-grown specimens of the 
a have been met with in Breydon Water, as well as the 
weaker form. et 
Triloculina oblonga, Montagu, sp. 
Vermiculum oblongum, Montagu (1803), Test. Brit. p. 522, pl. 14, fig. 9. 
There is no real boundary-line between Triloculina and 
Quinqueloculina; and many specimens assigned to T. oblonga 
might with almost equal reason be placed in the latter genus. 
Moderately common in Montrose Basin, the Wansbeck 
estuary, and Breyden Water; rare in Budle Bay, the Aln, the 
Bure, and at Westport. 
Quinqueloculina seminulum, Linné, sp. 
Serpula seminulum, Linné (1767), Syst. Nat. 12th ed. p. 1264. no. 791. 
éty, , sca; but 
abundance of specimens the latter greatly preponderates. The 
