48 THE FORAMINIFERA OF THE RIVER DEE. 
* Lagena aspera, Reuss. 
Lagena aspera, Reuss, 1861, Sitzungsb. d. k. Akad. Wiss. Wien., vol. xl., 
p. 305, pl. i., fig. 5. 
A rare species, with superficial rugosity caused by small, 
short, blunt spines. Well figured by Professor Reuss from 
fossil Tertiary specimens, but not figured in any English work. 
Lagena trigono-marginate, Parker and Jones. 
Lagena trigono-marginata, Parker and Jones, 1865, Phil. Trans., vol. cly., 
p. 419, pl. 48, fig. 1 a. b. 
L. marginata, L. ornata, and L. lueida, all occur in the 
trigonal condition in the Dee, the latter form being the most 
frequent. Messrs. Parker and Jones figure the first-named in 
the supplementary plates of their Monograph of North Atlantic 
and Arctic Foraminifera. Their specimens were from the 
Kocene beds of Grignon, in France, but some of the trifacial 
and trimarginate forms have been met with by Mr. D. Rosrrr- 
son, F.G.S., on the coast of Durham, and by Mr. Jos. Waicur, 
F.G.S., on the North coast of Ireland. These varieties were 
first noticed, by Seguenza, in the Miocene marls of Messina, 
who described six ‘species’ from this source, under the distinct 
generic name Trigonulina. 
Polymorphina Thowini, D’Orbigny. 
Polymorphina Thouint, D’Orbigny, 1826, Ann. Sci. Nat., vol. ii, p. 265, 
No. 8, Modéle No. 23; Brady, Parker, and Jones, 1870, Trans. Linn. 
Soc., Lond., vol. xxvii., p. 232, pl. xl., fig. 17. 
An interesting and exceedingly well-marked variety, of which 
one very beautiful specimen was obtained. It has an attenuated 
subcylindrical contour, with long, upright, compactly fitting 
segments. 
* Polymorphina spinosa, D’Orbigny. 
Globulina spinosa, D’Orbigny, 1846, For. Foss., Vien., p. 2038, pl. xiii, 
figs. 23, 24. 
Polymorphina spinosa, Brady, Parker, and Jones, 1870, Trans. Linn. Soc., 
Lond., vol. xxvii., part 2, p. 243, pl. xlii., figs, 36 a. b. 
A solitary specimen of this extremely rare shell, the surface 
