. 296 . Mr. Henry B. Brady on 
brackish habitats. It has not been found living in the fen- 
waters nor in the localities examined in the west of. Scotland. 
Dentalina guttifera, D’Orbigny. Pl. XII. fig. 2. 
Dentalina guttifera, D'Orbigny (1846), For. Foss. Vienne, p. 49, pl. 2. 
11-13. 
Amongst the numerous Dentaline with subglobular fusi- 
form chambers that have received specific names at the hands 
of one author or other, D. guttifera, as figured in the * Vienna 
Basin’ monograph, may be accepted as the best representative. 
D'Orbigny assigns to it the following specific characters :— 
“ Test elongate, smooth. Chambers seven in number, pyri- 
orm, inflated, separated by constrictions so deep that the 
shell appears like a string of beads. The earliest chamber 
mucronate." 
the upper 
portion of each tapering gradually to a capillary stoloniferous 
e 
Dentalina guttifera may be regarded as the curved condi- 
tion of Nodosaria pyrula. Although occasional specimens 
have been met with at other portions of the British coast, 
no notice of its occurrence has been published heretofore. In 
the brackish gatherings it has only been noted in two locali- 
ties— Bo'ness (Frith of Forth) and the Blyth estuary. 
Marginulina glabra, D'Orbigny. Pl. XII. figs. 3 a, b. 
Marginulina glabra, D'Orbigny (1826), Ann. Sci. Nat. vol. vii. p. 259. no. 6, 
Modéle no. 55. 
One or two specimens from Montrose Basin only. Chance 
specimens they might be called; for the species is of rare oc- 
currence on the British coast, even under more favourable con- 
ditions. We have examples from deep water off the west of 
Seotland, but elsewhere on our shores have never met with it. 
Cristellaria rotulata, Lamarck, sp. 
— rotulata, Lamarck (1804), Annales du Muséum, vol. v. p. 188. 
no. 3. 
Not at home in brackish water, one very small example in 
the Blyth gathering being the only instance of its occurrence. 
