. 13. 
10. 
11. 
12. 
14. 
15.- 
16. 
PLATE XXVIII. 
VermIcuLus ANGUIS, Forbes, p. 243; side-view of a fragment and a portion of the 
surface of the shell enlarged; the specimen is in the London Geol. Society’s 
collection and is the original of Professor Forbes’ publication; Pondicherry ; 
Valudayur (or Arriatoor) group. ; 
Evia (Lerosrraca) antigua, Forbes, p. 289; front-view of the unique and 
original specimen also deposited in the London Geol. Society’s collection; the 
outer lip is somewhat imperfect ; Pondicherry ; Valudayur (or Arrialoor) group. 
TyLostoma NaTIcoIpDES, @’Ord., p. 292; front-view of a specimen from Uchaux 
in d’Orbigny’s collection in the Jardin des Plantes, Paris, to illustrate the 
generic characters of the genus Tylostoma. 
Neritina compacta, Forbes, p. 339; front- and back-views of Professor Forbes’ 
original specimen from the London Geol. Society’s collection ; Pondicherry ; 
Arrialoor group. 
Nerita prvaricata, d’Ord., p. 340; front-view of a large specimen with the shell 
partially broken for the purpose of illustrating the different layers in the structure 
of the shell (see pp. 334-335); a, represents the rock mass; b, the outer, 
unaltered layer of the shell; c, the inner, callose, layer, changed into an aggre- 
gate of crystals of calcite ; Parchairy ; Arrialoor group. 
Trctura (?) ELnvaTa, Forbes, sp., p, 3223 side- and top-views of the unique and 
original specimen from the London Geol. Society’s collection; Pondicherry 5 
Arrialoor group. 
Hetction corrueatum, Forbes, sp., p. 323; similar views as the last of the original 
specimen ; also deposited in the London Geol. Society’s collection ; the shell surface 
is only partially preserved ; Pondicherry ; Arrialoor group. 
. SOLARIELLA RADIATULA, Forbes, p. 875; two enlarged portions of the shell surface 
from near the suture; (see Pl. XXIV, Figs. 17-19). 
SoLARIELLA STRANGULATA, Sto/., p. 376; enlarged portion of the shell surface from 
near the suture; (sce Pl. XXIV, Fig. 20). 
Emaremva (conf, Gurrancert, d’0rb.), p. 394; top- and side-views of a cast 
specimen, apex broken off; Odium ; Ootatoor group. 
Uvanitza Rasan, Forbes, sp., p. 360; front-view of the original specimen from 
the London Geol. Society’s collection ; Pondicherry ; Arrialoor group. 
? DELPHINULA ROTELLOIWES, Forbes, sp., p. 378; front-view of the original specimen 
from the London Geol. Society’s collection ; Pondicherry ? Arrialoor group. 
GippuLa GRANULOSA, Sfo/., p. 370; enlarged figure of the same specimen as _ repre- 
sented in Fig. 8 on Pl. XXIV. 
Litnoroma intersecta, Sto/., p. 360; front-view of the same specimen as repre- 
sented in Fig. 21, Pl. XXIV. 
ViTrRINELLA oRBICULATA, Stol., p.350 ; top- basal- and front-views of a well preserved 
small specimen ; Verdachellum ; Verdachellum group. 
