Jrom the Tertiary Beds near Melbourne. 379 
but in all other characters the coincidence or representation of 
characters is so complete that, if the tip of the spire were in 
each case absent, the nicest eye could scarcely separate them ; 
yet the distinguishing character is one of such importance, and 
so invariable, that there cen be no doubt of its marking a per- 
fectly distinct species. 
This species is also closely allied to the V. nodosa (Sow.) of 
the Hampshire Eocene Tertiary, Barton Clay, and Bracklesham 
beds, but may be distinguished by the upper row of tubercles of 
the spiral whorls being distinctly separated from the suture by 
a space equalling about half the width of the space between the 
upper and lower rows of tubercles on each whorl, as in V. sca- 
laris : one or two very old thick specimens show a spreading inner 
lip, and a very faint indication in some lights of a crenulation on 
the edge of the outer lip; and the plaits are thickened, and in 
one case an intermediate fifth plait appears. 
Common in the Tertiary clays of (Ad. 14) parish Moolap; a 
variety not uncommon in Tertiary clays of Orphan Asylum 
Reserve, Fyan’s Ford, Ad. 28, not uncommon in blue clays and 
limestone near Mount Martha. Var. a. levior has the apical angle 
65° to 70°, often a fourth small columellar fold, and the spiral 
transverse sulci become nearly or quite obsolete near the spinous 
shoulder, and sometimes over more than half of the body-whorl 
as well as on the whorls of the spire ; it is also a little stronger, but 
is certainly only a variety. In clays and limestone, Mount Martha. 
Voluta anticingulata (M‘Coy). 
Ovate; spire moderately acute (apical angle varying from 55° 
to 65°, usually 60°), of five slightly convex, sculptured, gradu- 
ally increasing whorls, and a smooth, rounded, small, swollen 
nucleus of one turn and a half; sutures twisted or subcanalicu- 
lated by a narrow flattened or hollow space separating the su- 
tural line of conoidal tubercles, which are on the other side 
separated from the obtuse tubercular ends of the nearly straight 
longitudinal ribs by a deep spiral constriction or channel seem- 
ing to eut the ribs to the depth of the spaces between them ; 
body-whorl obtusely rounded at the shoulder, rounding abruptly 
to the subsutural channel, and conoidally attenuated to a narrow 
slightly emarginate front ; ribs thick, obtusely rounded (usually 
nineteen, rarely fifteen, and in one case twenty-four in the last 
whorl), usually becoming obsolete at about half the length of 
body-whorl (sometimes shorter and often somewhat longer), but 
becoming very prominent, and separated by rather wider, deep 
concave spaces, at the shoulder, where each terminates in an ob- 
tusely rounded end at the constriction or subsutural groove, 
above which each rib seems continued as a blunt conoidal tu- 
26% 
