Figs. 
Figs. 
Figs. 14—15. 
Figs. 16—17. 
Figs. 18—20. 
9—10. 
11—13. 
PLATE Il. 
AporrHais ARRIALOORENSIS, Sfol. ; p. 28; 1 and 1 a, front-and back-views, enlarged 
to twice the linear dimensions ; the wanting parts of the wing have been restored 
in outline; Comarapolliam ; Arrialoor group. 
APORRHAIS SECURIFERA, Forbes, sp.; p. 28; 2—2a, front and back-views of a nearly 
complete specimen; 4, front-view of a large fragment, with much thickened 
internal margins of the aperture; both specimens from near Alwndanapooram ; 
3, an imperfect specimen with somewhat more convex whorls and a fine spiral 
striation; from Kolakonuttom ; Trichinopoly group. 
Ataria Parkinson, Mant. sp.; p. 30; 5, front-view of a cast with the impression of 
the wing; 6, back-view of another specimen, with the posterior outline of the 
wing; both from near Odium; Ootatoor group; 7, small specimen with smooth 
embryonal whorls from W. of Serdamungalum, and 8, front-view of an incomplete 
specimen from S. of Serdamungalum ; Trichinopoly group. 
Auarta Papitionacea, Goldf.sp.; p. 31; 9, back-view of a specimen from WV. of Ser- 
damungalum, and 10, front-view of a specimen from near Coonum ; Trichinopoly 
group. 
Ataris TEGuLATA, Stol.; p. 33; 11—lla, front and back-views of an incomplete 
specimen with numerous thin ribs; from Olapaudy; Arrialoor group ; 12, front- 
view of a specimen with somewhat larger spiral angle, wing and anterior canal 
broken away; 13, back-view of another incomplete specimen with moderately 
distant and continuous ribs; the last two from near Kolakonuttom ; Trichinopoly 
group. 
AARIA GLANDINA, Séol.; p. 352; 14—14a, front and back-views of a nearly com- 
plete specimen, and 15, front-view of a larger, but incomplete specimen; both 
from near Anapaudy ; Trichinopoly group. 
Aarta actcuLaris, Stol.; p. 32; 16—16a, front and back-views, and 17, back- 
view of incomplete specimens ; both from Olapaudy ; Arrialoor group. 
RosrELLARia PALLIATA, Forbes, p. 84; 18—18a, front and back-views of a cast speci- 
men from 8. of Serdamungalum ; Trichinopoly group ; 19,* an imperfect specimen 
from near Pondicherry (2) Valudayur group; 20—20a, back and front-views of a 
specimen from Olapaudy ; Arrialoor group ; the probable shape of the outer lips 
has been completed in outline, which ought to indicate anteriorly a more distinct 
notch. 
* This specimen is in the Madras Collection. 
