10-11. 
12-13. 
17-18. 
19. 
20. 
21. 
PLATE XXVII. 
AVELDANA SCULPTILIS, Sfol., p. 422; front- side- and back-views of a perfect speci- 
men (see Pl. XXVIII, Fig. 22); N. #. of Karapaudy ; Arrialoor group. 
AVELLANA ELONGATA, Guér., p. 422; similar views to the former, also a perfect 
specimen ; WV. L. of Odium ; Ootatoor group. 
Rinarcuna acuta, Forbes, p. 424; similar views of a perfect specimen; Garuda- 
mungalum ; Trichinopoly group. 
Rincrineita acuminata, Sfol., p. 423; similar views; the outer lip and anterior 
portion of the shell are somewhat injured ; Comarapolliam ; Arrialoor group. 
Acrmon (SOLIDULA) SEMEN, Fordes, p. 415; 5, a rather elongated specimen from 
Garudamungalum ; 6 and 7, somewhat more inflated specimens from Ninnyoor ; 
Trichinopoly- and Arrialoor groups. 
Acrmon (sonipuLA) pucrtis, Stol., p. 415; 8, an elongated, 9, a more inflated 
specimen with shorter spire; Comarapolliam ; Arriatoor group. 
Actmon TurRRIcULATUS, Stol., p. 416; 10, an elongated, 11, a more inflated speci- 
men (see also Pl. XXVIII, Fig. 19); Garudamungatum ; Trichinopoly group. 
Actmon curcutio, forbes, p. 417; 12, a thinner, 13, a more inflated specimen, both 
partially restored from another specimen ; Comarapolliam ; Arrialoor group. 
Buiinuta oprustuscuna, Stol., p. 420; front- and back-views of a somewhat 
imperfect specimen (see next Plate, Fig. 25); Arrialoor ; Arrialoor group. 
Acrmon suncrus, Stol., p. 417; front- and back-views of a specimen the orna- 
mentation of which is partially restored from another one; Odium ; Ootatoor 
group. 
Actrmon seminatus, S¢od., p. 416 ; front-view of a young specimen (see next Plate, 
Fig. 18); Garudamungalum ; Trichinopoly group. 
BuLiina AaLTeRNATA, Séol., p. 413; 17, front- top- and back-views of a well pre- 
served specimen from Garudamungalum ; 18, a smaller, somewhat more elongated 
specimen from Veraghoor ; Trichinopoly group. 
Butta creracea, d’Ord., p. 414; front- back- and top-views of a well preserved 
shell; Garudamungalum ; Trichinopoly group. 
Cyzicuna tnermis, Stol., p. 431; front- and top-views of a specimen, anteriorly 
somewhat imperfect ; the surface of the shell is also shghtly worn off; Comara- 
polliam ; Arrialoor group. ; 
Denratium crassutum, Sfol., p. 444; side-view and section of the shell repre- 
sented by three different fragments; S. of Serdamungalum ; Trichinopoly group. 
Fustraria PAarvuLA, Séol., p. 445; a small well preserved shell with the posterior 
fissure distinct ; Pondicherry ; Valudayur group. 
ANTALE ARCOTINUM, Lordes, sp., p. 445; the posterior termination is very nearly 
perfect; Pondicherry ; Valudayur group. 
ANTALE GLABRATUM, Sto/., p. 445; 24, dorsal side of a broken specimen, showing 
the longitudinal furrows; 28, side-view and sections of a larger specimen; the 
surface of the shell is in neither perfectly preserved ; Odium ; Ootatoor group. 
