250 Meyer-—Lower Greensand Brachiopods. 
of brownish sand and pebbles, varying from 8 inches to 2 feet 
in thickness. This bed has, by careful search, afforded me a 
singular series of organisms, amongst which fragments of the 
casts of Ammonites (Oolitic) are the most abundant; casts of 
small Univalve and Bivalve Shells, teeth of Saurians, teeth 
and scales of Fishes—Lepidotus, Gyrodus, Hybodus, Acrodus, 
and Lamna(?), occurring less frequently, and rarely indeed 
teeth of Saurichthys. It is not, however, to the occurrence of 
derivative fossils in the pebble-bed that I would now refer ; 
but to that of such fossils as, by their appearance and state of 
preservation, are evidently proper to the bed in question. 
These consist of twelve or more species of Brachiopoda, three 
or four small forms of Exogyra, Pecten orbicularis, a Pecten in 
markings most nearly resembling P. Raulinianus, D’Orb., Avi- 
cula pectinata, Serpule, and fragments of Bryozoa. I propose 
on the present occasion to confine my observations to the 
Brachiopoda. 
The Brachiopod most frequently to be met with in the 
pebble-bed of Godalming is a species of Terebratella, which, m 
some of its variations, might be mistaken for a small variety of 
Terebratula oblonga, Sow. (M. C. pl. 535, figs. 4-6); and 
such indeed I had long considered it to be; but, after meeting 
with specimens of Z. oblonga in the same deposit, in its ordi- 
nary form, I began to doubt the identification of the smaller 
species ; and a closer examination of the pebble-bed shell tended 
to convince me that it was not only distinct from Sowerby’s 
TL. oblonga, but also from two other (foreign) Cretaceous 
species which it somewhat nearly resembles, namely 7. semz- 
striata, Defr. (D’Orb. Ter. Crét., iv. pl. 508, figs. 1-11), and 
T. Beaumonti, D’ Arch. (Mém. 8. G. Fr., 2 sér. pl. 21, figs. 12 
—14). I am still, however, in doubt whether the imperfect 
specimen figured and described in Dr. Fitton’s Memoir ‘ On 
the Strata below the Chalk’ (Geol. Trans. 2nd ser. vol. iv. 
pl. 14, fig. 9), under the name of J. quadrata is not the same 
as this Godalming shell. Yet, while considering the present 
species as specifically distinct from 7. oblonga, it seems unad- 
visable to retain for it a name by which it would still be 
confounded with that species. I propose therefore to describe 
the pebble-bed shell under the specific name of Fitton?, in 
honour of one who, if not the original discoverer of the species, 
has done so much for our Cretaceous geology. 
1. TEREBRATELLA Firtonr. Spec. nov. Pl. XI., figs. 1 to 10. 
Terebratula quadrata (?), Sow. in Fitton, Geol. Trans., 2 ser. vol. iv. 
p. 388, pl. 14, fig. 9.. 
Shell ovate or irregularly pentagonal, its greatest width and 
