108 
The fossil figured by me, as quoted above, is from Murray 
Desert, though the description was drawn-up from a Muddy 
Creek authentic example of J. dictwa, Ten.-Woods. A _ re- 
examination of the Tareena specimen, aided by others since 
acquired from Mindarie, satisfies me that my original determina- 
tion is wrong; that the Murray Desert shell is distinct from M. 
dictua, from which it differs by more cylindric shape and by the 
earlier whorls being without ornament. 
A similar species to the foregoing occurs in the Pliocene of the 
Dry Creek and Croydon bores, near Adelaide; which is dis- 
tinguished from MM. diductua by an antesutural sulcus, more or 
less punctuated, posterior to which there may be one or two 
linear sulcations (5 exs.); I name it AL. fodinalis. 
M. uniplica, M. dictua, M. diductua, and M. fodinalis are 
typical Mitre, constituting a group characterized by ill-developed 
or obsolete anterior columella-plications. | 
Anecilla hebera, Hutton. 
The fossil referred to as A. pseudaustralis, var., in Trans. Roy. 
Soc., S. Aust., vol. XI., p. 148, t. 6, f. 13., I now consider to be 
an extremely large senile form of A. hebera (Three senile examples 
of varying size from Murray Desert). 
Cassis contusus, spec. nov. Plate i, fig. 1 a, b. 
This fossil is of the same shape as C. exiguus, though the apex 
is more slender and apiculate. The last whorl has three rows of 
nodulations, the posterior one is continuous to the labrum, the 
middle row does not reach so far, whilst the anterior row fades 
away at about the half distance between the last varix and the 
labrum. The posterior row of nodulations are fewer (fourteen) 
than in C. exiguus, and the antesutural crenatures are much 
wider than in that species. Whilst in the allied species the 
ornamentation consists of strong axial threads crossed by 
revolving striz; in C. contusws the axial ornament consists of 
irregular wrinklings, whilst the middle line of the interspaces 
between the nodulate rows is occupied by two or three spiral 
rows of impressions varying in outline from circular to rhombic ; 
a similar ornate band is anterior to the third nodulate row, and 
again around the base posterior to the snout. 
Dimensions.—Total length, 53 mm.; length of spire, 7 mm. 
peripheral diameter, 40 mm. Typeunique. University Museum’ 
Sureula Vardoni, spec. nov. Plate i., fig. 3 a, b. 
Fusiform ; spire pyramidal, acute, nearly as long as the 
aperture, terminating in a small obtuse pullus of two smooth 
whorls, the tip of which is laterally immersed. Ordinary spire- 
whorls six, separated by a linear suture, flatly convex ; the earlier 
whorls mediaily carinated or bicarinated coincident with the 
