Big. 1 
Vie. 9 
Fie. 3 
Hic: 4 
Picsy ago: 
Figs. 10—11, 
PLATE XII. 
CoLUMBELLINA, sp.; p. 139; front-and side-views of a cast specimen from near 
Odium ; Ootatoor group. 
Psruponiva susBcostaTa, Sfol.; p. 145; front- and back-views; the anterior termi- 
nation has been restored to its probable shape ; Ninnyoor ; Arrialoor group. 
Nassa Arrranoorensis, Sto/. ; p. 144; front- and back-views ; the aperture partially 
restored ; Vaitagoody ; Arrialoor group. 
Nassa Vyiapaupensis, Sto. ; p. 144 ; 4, front-view ; the aperture partially restored 
from another specimen ; 47, one whorl increased, showing the disposition of the 
transverse ribs and spiral strie ; Vylapaudy ; Arrialoor group. 
Tuprceia Eximia, Stol.; p. 151; 5, front-view of a well preserved specimen with the 
aperture, the canal has been indicated in outline; 6, back-view, a small specimen 
with two anterior, thinner keels ; 6a, top-view of the same; 7, back-view of a 
large specimen with only two keels, which become obsolete near the aperture ; 
8, back-view of a cast; and 8a, top-view of the same; all specimens are from the 
neighbourhood of Karapaudy ; Arrialoor group. 
Rapa Anpoorgnsis, Stol. ; p. 153; front-and back-views of a well preserved large 
specimen; the anterior termination of the canal is only indicated in outline ; 
Andoor ; Trichinopoly group. 
Rapa nopirera, Stol. ; p. 153; 10, front-, 10a, back-views of a large specimen, the 
canal being only indicated; 11, a small specimen; both from near Coonum ; 
Trichinopoly group. 
Rapa CaNcELLATA, Sow.,sp.; p. 154; 12 asmall specimen with the extreme margin of 
the outer lip broken off, but with the anterior canal almost perfect ; from near Ser- 
damungalum ; 13-16, specimens of different sizes with the outer and inner lips mostly 
well preserved, the columella becoming gradually more excavated, as the size of 
the shell increases, while the anterior canal appears to become shorter in propor- 
tion ; all specimens from W. of Kullygoody ; Trichinopoly group. 
