238 MESSRS. BRADY, PARKER, AND JONES 
Some of the fine large Polymorphine from the Crag show a peculiar form of surface- 
ornamentation that has not hitherto been described; nor have we observed any thing pre- 
cisely similar in specimens from other localities. It consists of unequal and irregular 
depressions of angular shape, sometimes bordered by a slightly raised line. In these spe- 
cimens the shell-wall is coarse and thick, and the terminal orifice sometimes differs from 
the normal circular aperture and becomes labyrinthie, or even divided into two or three 
distinct perforations. ! 
Distribution.—W e have only found P. variata in Mr. Searles Wood's gatherings from 
the Crag of Sutton, near Colchester; and even in these it is by no means of common oc- 
currence. 
PoLYMORPHINA DIGITALIS, D'Orbigny. (Plate XLI. figs. 25, a, b.) 
Polymorphina digitalis, D’Orbigny, 1846, For. Foss. Vien. p. 235, pl. 14. figs. 1-4. 
Grammostomum costulatum, Ehrenberg, 1854, Mikrogeologie, pl. 25. fig. 21. 
Polymorphina digitalis, Karrer, 1868, Sitzungs. Akad. Wissen. Wien, vol. lviii. p. 174; Bunzel, 1869, 
Jahrb. k. k. geol. Reichsanstalt, vol. for 1869, p. 203. 
Characters.—Shell elongate, subequilateral, compressed, composed of many segments. 
Chambers oblique, narrow, convex. Aperture oval. Surface rugose, the rugosities dis- 
tributed in longitudinal lines. Length 345 inch. | | 
The shell figured by M. D'Orbigny, loc. cit. is a good representative of a section of the 
Polymorphine which, in the arrangement of their chambers, simulate the Textularie ; 
indeed, in this particular instance, the general resemblance is so strong that the true 
affinity of the species is only betrayed by the central terminal orifice and its radiate 
corona. Closely allied in form to the elongate modifications of P. complanata, it differs 
from them in its peculiar surface-ornamentation, consisting of granular lines. 
Distribution—We have never met with specimens corresponding exactly with the 
figures given by D'Orbigny, and can add nothing in respect to distribution to the loca- 
lities noted by the observers quoted above, viz. the Nussdorf beds of the Vienna Basin, 
and a Tertiary deposit at Kostej in the Banat, both of Miocene age. 
POLYMORPHINA GRANULOSA, Egger. (Plate XLI. figs. 26, a, b.) 
Polymorphina (Globulina) granulosa, Egger, 1857, Neues Jahrb. für Min., Jahrg. 1857, p. 290, pl. 14. 
figs. 1, 2. 
Characters —Shell oblong or oval, regular, subcompressed, rounded at the anterior and 
posterior extremities. Surface marked by en set, delicate, parallel, lo stria. 
Septal lines scarcely perceptible. Length 35 inch. 
It would probably be impossible to draw a rigid line between the varieties of Poly- 
pae granulosa and those of some other striate or substriate forms, such as for 
example P. myristiformis, but for the compact ellipsoidal contour of the shell and the 
granular texture of the striæ ; these are distinctive characters, and cannot tone be 
mistaken in fully grown or average specimens. | 
. Distribution.—Found by Dr. Egger in the Miocene beds of Stansbach, Bavaria. + : 
