OF SOUTHERN INDIA. AB 
number of whorls the species may for the present be easily recognised and compared 
with other allied species. 
Locality. Near Veraghoor in the Trichinopoly district. 
Formation. Arrialoor group. 
8. PreRoODONTA NoBiLis, Sfoliczka. Pl. V, Figs. 2 and 4. 
Pt. testa ovate-elongata, anfractibus circiter septenis, subconvexis composita, ultimo 
in altitudine spire fere equali, superficie minutissime punctata atque posterius prope 
suturas nonnullis striis spiralibus ornata ; labro ad marginem paululum sinuoso atque 
expanso, intus variciformi incrassato: varicibus longis, fere ad suturam posteriorem 
extensis atque § in uno circuitu distantibus ; labio calloso, levi; columella in juniori- 
bus speciminibus excavata, in adultis viv fissurata ; apertura oblique ovata ? antice 
emarginata, postice acuta. 
Spiral angle 50°—55°; sutural angle 10°—12°. 
Height of last whorl : total of shell (consd. as 1:00) 0°50—0:55. 
This.species is principally characterised by its elongated form, the last whorl 
being of equal height or a very little higher than the conical spira. The whorls are 
moderately convex, the surface of the shell is usually smooth, minutely punctated 
and posteriorly near the suture provided with a few fine spiral striz. The last 
volution is inflated and evenly rounded. The outer lip is slightly expanded, inter- 
nally with a strong and long varix. On the upper whorls impressions of varices 
are visible at two-thirds distance on each whorl. The columella is in young speci- 
mens hollowed out, but in fuller grown specimens the thickened inner lip covers the 
opening perfectly (vide Pl. V., Fig. 2). In none of our specimens is the anterior 
portion of the aperture preserved, and its shape has been, therefore, only indicated 
by an outline in our figure. 
Locality. Rare in the sandstones near Garudamungalum in the Trichinopoly 
district. 
Formation. 'Trichinopoly group. 
4, PrERoDONTA OoraTooRENSIS, Stoliczka. Pl. V, Figs. 1—3. 
Pt. testa late conica, anfractibus senis sew septenis, suturis parum impressis atque 
Jere ascendentibus sejunctis, subconvexis levigatisque; spira brevi; ultimo anfractu 
maximo, inflato, ad medium obsolete carinato ; superficie minutissime punctata; aper- 
tura ovate-elongata, antice emarginata; labro parum dilatato, varicibus internis longis, 
crassis, pliciformibus earumque impressionibus in anfractibus superioribus interdum 
Sere oppositis. 
Spiral angle 60°—70°; sutural angle 2°—4°. 
Height of last whorl: total of shell (consd. as 1-00) 0-55—0-60. 
A broadly conical shell, composed of six or seven slightly convex volutions, of 
which the last one is inflated and generally higher than the spire. The surface of 
the shell is smooth, marked only with fine strize of growth, and minutely punctated. 
