VOL. Xv. (2) C. UPTON—BRACHIOPODA 89 
gasteropods, and in a lesser degree among lamellibranchs, 
but I am not aware of any instances among the Brachio- 
poda, unless indeed the closing up in old age of the pedicle 
passage in some of the palaozoic forms can be so 
described. 
The beak of Zudesia cardium, Lam, has the appearance 
of having been truncated by abrasion, but in that species 
no attempt appears to have been made to make good the 
injury. It is not difficult to conceive that in the case of a 
Brachiopod having a very short and possibly weak anchor- 
ing ligament, wave movement would be liable to cause 
abrasion of the part of the shell most nearly in contact 
with the support to which the animal was attached. 
NorTe.—At the time of reading the paper I did not pro- 
pose to name the form, but I have since found 
two other examples having precisely the same 
characters, and in response to a suggestion that I 
should name, describe, and figure it, I have done so. 
6. TEREBRATULA VENTRICOSA, Hlartmann. . 
Pl. III., figs. 24—26. 
1830. T.VENTRICOSA. Zeiten die Versteinerungen Wur- 
tembergs, p. 52, pl. xl., figs. a, b, c. 
1862. T. VENTRICOSA £. Deslongchamps. Pal. Franc. 
Brachs., Juras., pl. Ixxiii., Ixxvi. 
1871. T. VENTRICOSA Quenst. Die Brachiopoden, pl. 
xlix., fig. 102. 
In the supplement to the British Liassic and Triassic 
Brachiopoda, vol. iv., pl. xv., figures 10 and 11, Dr Davidson, 
figures two shells belonging to Mr John F. Walker’s col- 
lection as 7. ventricosa, but with a query. One (fig. 10) 
is stated to be from the “‘ Inferior Oolite” of Cleeve Hill, 
the other (fig. 11) from the Pea-Grit of Crickley,* but 
1 Specimens from this horizon are recorded in “ Handbook Geol. Cheltenham,” p. 246 
as ** ZT. ventricosa 2? Davidson (non Zeiten.)” 
H 
