102 
W. J. Sollas — The Genus Webbina. 
The German Government geologists consider the Büdesheim beds 
as Upper Devonian. If they are right, is it not probable that we 
should be correct in dropping the term “Upper South Devon,” and 
simply calling these beds “ Upper Devonian” ? 
It may be well to add that the same beds a littleto the nortlnvard, 
at the extreme south end of Goodrington Sands, have yielded several 
specimens of Plenrodiotyim problematicum and sections of large 
Crinoidal stems. There are also many indefinite markings in the 
red sandy shale bearing a great resemblance to vegetable remains. 
EXPLANATION OF PLATE Y. 
From Saltern Cove. 
Fig. 1 . Ooniutites auris, Quenst. 
3. „ retrorsus, Quenst. 
5. ,, Ausavensis, Stein. 
7. ,, primordialis, Quenst. 
(nat. size.) 
8. ,, ‘Geroliteinu-% Stein. 
9. „ prumiensis, Stein. 
10. <?, b, c, Orthocerus Schlotheimi, 
Quenst. 
12. Pleurotomuria turbinea, Stein. 
14. Mytilus priscus, Stein. 
15. Cardium palmatum. 
17. ö, b, e, Crinoidal stems. 
From Büdesheim. 
Fig. 2a, 2b. Goniatites auris, Quenst. 
„4. ,, retrorsus, Quenst. 
„ 6. „ A usavensis, Stein. 
„ 1L a, b, Orthoceras Schlotheimi, 
Quenst. 
. „ 13. Pleurotomaria turbinea, Stein. 
„ 16. Cardium palmatum. 
(All draivntwice nat. size, except Fig. 7.) 
III. — On THE PeRFORATE CfilARACTER OF THE GeNUS W EBBIN A, WITH A 
Notice of Two New Spkctes, W. l.evis and W. tubekculaia. 
from the Cambridge Greensand. 
By W. J. Sollas, B.A., F.G.S. 
(PLATE VI.) 
T HE well-known genus Trochammina was instituted in 1859 1 by 
Messrs. Parker and Jones as a sub-genus for the reception of 
an arenaceous foraminifer, the Rotalia ( Nautilus ) ivflata of Muntagu. 
Subsequent researches led these observers in the following year 2 
to elevate it to the rank of a distinct genus, and it was at the same 
time made to embraee the important series of forms then known as 
Webbina irregulnris, D’Orb. 
In the incomplete list of the genera of Foraminifera occurring in 
the Cambridge Greensand, furnished by me to the Journal of the 
Geological Society 3 some time ago, Trochammina is enumerated as a 
somewhat abundant form, on the evidence of numerous examples of 
wliat I regarded at the time as specimens of Webbina irregularis, and 
which indeed so closely resemble this species in external form and 
appearanee, as to have led Mr. Brady to form the same opinion in 
regard to them as myself. 
It did not occur to me to question the arenaceous character of these 
forms, tili, in examining a thin slice of Yentriculite, preserved, like 
most of the fossils of the Cambridge Greensand bed, in calcic plios- 
phate, I observed two specimens of a foraminifer in section presenting 
the same outline as that of the supposed W. irregularis, and adherent, 
1 Ann. and Mag. Nat. Hist., 1859, vol. iv. p. 383. 
2 Quart. Journ. Geol. Soc., 1860, vol. xvi. p. 304. 
3 Quart. Journ. Geol. Soc. 1872, vol. xxviii. p. 398. 
