256 CRETACEOUS GASTROPODA 
2, SOLARIUM KURRIBIEMSE, Stolizcka, Pl. XIX, Fig. 30. 
Sol. testa orbiculata, late conica, apice obtusa, infra late umbilicata ; anfractibus 
supernis planulatis, ad suturam acute crenulato-carinatis, ultimo ad peripheriam 
bicarinato ; carina superna fortiori, utraque spimulose crenulata ; basi valde convexa, 
in margine wnbilici acute carinata, atque irregulariter crenata seu subtuberculata ; 
superficie spiraliter atque transversaliter striata ; apertura intus, subrotundata, extus 
Sere quadrangulari, ad peripheriam biangulata. 
This is the second known cretaceous species with two peripherical keels on 
the last whorl, the first having been described from the upper Gault of Ste. Croix 
by Pictet and Roux, and subsequently by Pictet and Campiche as Sol. Tollotianwm 
(Pal. Suisse 3me. Ser., p. 541, pl. 88, figs. 6 and 8). Although these two species 
would at first sight appear to be the same, they cannot be identified from the figure 
given by Pictet and Campiche: the distinctions of our Indian fossil being a more 
depressed form, so as to make on the upper whorls only the stronger keel visible 
at the suture, and the want of a third basal keel. There is a little dis- 
crepancy between Pictet and Campiche’s description and figure (loc. cit., p. 542, 
pl. 88, fig. Ga). The former says, that the basal keel encircles the umbilicus, 
but in the latter this keel is placed about the middle of the basis, and originates at 
the posterior angle of the aperture, it cannot, therefore, be regarded exactly as the 
edge of the umbilicus. Beside these differences the figure of Sol. Tolloti- 
anum shows posteriorly a slight keel along the suture of each whorl, and the other 
keels are more strongly tuberculated, while in our specimen they are provided with 
short spines. ‘The spiral and transversal striation, the size of the umbilicus, and the 
general form of the whorls are in both species quite the same. 
Locality.—Kurribiem, in a light-brown, coarse, siliceous sandstone ; very rare. 
Formation.—Arrialoor group; the locality is on the boundary between the 
Arrialoor and the Trichinopoly groups, but the mineralogical character of the rock 
rather more reminds one of the siliceous and sandy beds of the uppermost of the 
three divisions. 
do. SOLARIUM KARAPAUDIENSE, Stoliczka, Pl. XX, Figs. 1-4. 
Sol. testa depresso-conica, spira plus minusve elevata ; anfractibus ad peripheriam 
obtuse carinatis, supra prope suturam applanatis, postea sub-angulatis atque infra 
angulum abrupte seu lente declivis ; superficie spiraliter atque transversaliter striata : 
una stria spirali infra medium posita sepissime ceteris fortiori ; wmbilico moderato, 
ad marginem crenulato; apertura angulari, marginibus tenuibus instructa. 
Spiral angle 75°- 110°. 
Shell broadly conical, with more or less elevated spire, according to which the 
degree of the spiral angle differs. All the whorls are flattened along the posterior 
suture, bounded by a sharp angle, after which the whorls slope rapidly, or more 
or less gently, towards the periphery, according to the greater or lesser elevation of 
