Loological Society. “129 
in length and half an inch in depth, slightly contracted in the middle. 
This difference in the size of the supra-tympanic cell is obviously 
not the effect of age, as the skull of the Phasc. Vombatus compared 
is that of an old animal with strong temporal ridges. In Phasc. la- 
tifrons the articular surface for the condyle of the lower jaw is 
broader and less convex; the anterior boundary of the zygomatic 
space is less angular; the palatal surface of the intermaxillaries is 
‘deeper; the curve of the lower border of the lower jaw is much 
deeper; the inner angle of the condyle is less produced ; the coronoid 
process is higher and narrower, and the post-symphysial depression 
is almost obsolete. 
The Secretary saw with much pleasure the decisive proofs which 
Professor Owen had shown of the existence of two species of Wombat ; 
he had many years before been himself convinced of the fact, having 
observed that they differed in size and colour, and that one hada 
sharp prick ear, while the ear of the other was low and elliptical. 
August 12.—William Yarrell, Esq., Vice-President, in the Chair. 
“‘ Descriptions of new species of Murev,’” by Lovell Reeve, Esq. :— 
_ Murex sipinnatus. Mur. testd elongato-fusiformi, spird acumi- 
nato-turritd; anfractibus septem, transversim eximie liratis et 
elevato-striatis, liris striis interstitiisque subtilissimé scabroso- 
crenulatis ; anfractibus primis sex tuberculato-nodosis, ultimo tri- 
varicoso, varicibus ultimis duobus pulcherrime fimbriato-pinna- 
tis; nived, rosaceo tinctd, columelld pallidé rosed ; aperturd parvd, 
_labri externi limbo minute denticulato ; canali latiusculo, subelon- 
gato. 
Hehs—-—? 7 
The Murex bipinnatus approaches the Murex clavus in general form, 
- but the detail of structure and sculpture is distinct throughout. ‘The 
spire exhibits a mass of prominent nodules, each whorl taking the 
form of a heptagon, with as many as seven on its circumference. 
The last two varices are ornamented with a handsome laminated 
frill structure. 
Murex sinensis. Mur. tesid elongato-ovatd, subfusiformi, tenut, 
spire suturis subimpressis ; anfractibus transversim liratis et stri- 
atis, inter varices nodiferis ; trifariam varicosd, varicibus fron- 
dosis, frondibus regularibus, curvatis, pulcherrime floridis, inciso- 
serratis ; albicante, fusco tinctd, lineis transversis fuscis ; labro 
infra medium fortiter erecto-dentato. 
Hab. China. . 
-- ‘This species appears to have been confounded for some time past 
with the young of the Murer ramosus or elongatus. It is uniformly 
of a thin structure, and the fronds are of a delicate open flowery 
growth. 
- Morex Sreeritz. Mur. testd abbreviato-fusiformi, crassd, trans- 
versim granoso-liratd, inter varices fortiter tuberculatd ; trifa- 
riam varicosd, varicibus incrassatis, frondosis, frondibus crispato- 
ramosis, subcompressis, breviusculis, fronde parvd interveniente » 
