PT. 8. ] 
StoliczJea, Cretaceous Gastropoda. 
57 
Ampullina bulbiformis, Gtyrodes pansus, Solariclla radiatula and Leptomaria indica are 
common to all the three divisions of the deposits. The Gastropodous fauna of the different groups 
is therefore tolerably well defined, the distinction between the Ootatoor and the Arrialoor 
groups being especially prominent. The large number of species common to the two higher 
groups is principally due to the uncertainty of the geological boundary between them. When 
this point has been more satisfactorily settled, it may show that an equal distinction exists 
in the Gastropodous fauna between them, as does between the two lower groups. All the species 
occurring in the Arrialoor group belong to such genera as are now commonly found 
living in shallow water, while many of those of the Ootatoor group are littoral forms, 
living on rocky coasts or on coral reefs.—The fauna, as a rule, is purely marine, and there 
is a remarkable absence of the potamidwjk, of the melanudje and others which are very 
characteristic for some of the beds of the Alpine cretaceous deposits. The comparison of 
our rocks with those of the Alps only applies, therefore, to the purely marine fauna. The 
Arrialoor beds were probably deposited over a large, very slightly undulating ground in 
from 2-10 fathoms of water, hut at some distance from the coast. 
In point of comparison of our fauna with that of other countries I must direct attention 
to the following table, giving a list of those species which are also found elsewhere 
No. 
Name of Genus and Species. 
Geological position. 
Remakes. 
In India. 
Not in India. 
1 
Alaria Parkinsoni, Mant. 
Oot. and Trich. . 
Gault and Green 
sand, (Cenomanien' 
2 
„ papilionacea, Goldf. 
Cyprzea Rayei, Forbes, (Globiconcln 
ovula, d’Orb.) 
Trieh. and Arr. . 
Turouien 
(Middle Plainer). 
3 
Trich. and Arr. . 
Senouien. 
4 
Pleurotoma subfusiformis, d’Orb. 
Tricli. (Arr. ?) 
Turouien. 
6 
Fulguraria eiongata, d’Orb. ... 
Oot.? Trich. and Arr 
Cenomanien and 
Turonien. 
6 
Fasciolaria rigida. Baity 
Trich. 
Middle cret. of St.lt 
Africa 
(Probably Cenomanien). 
7 
Ncptunea rhomboidalis, Zekeli 
Arr. 
Turonien 
(Gosau-deposits). 
8 
Tritonidca Requiem an a, d’Orb. 
Trich. 
Turouien. 
9 
Tricbotropis Kouinckl, Mull. ... 
Trich. 
Senonien near 
Aachen. 
10 
Nerinea ineavata, Broun 
Oot. 
Turonien 
Gosau and Transylvania. 
11 
Cerithium inauguratum, Stol.... 
Trich. and Arr. ... 
“ Craie pisolitique' 
near Paris. 
} I have observed these 
>two species in Prof. 
12 
„ Arcoten.se, Stol. 
Arr. 
Ditto. 
) Hebert’s collection. 
13 
„ trimonile, Mich. ... 
Ait. 
Gault and Grb; 
verts, (Cenomanien) 
14 
Turitella affinis, Miill, 
Trich. 
Senonien near 
Aachen. 
15 
„ Ncptuni, Mllnst; 
Trich. 
Turonien 
(Middle Plainer). 
16 
„ nerinea, Rom. 
Oot. 
Senonien 
(Upper Plzener). 
17 
,, nodosa, Rum. 
Oot. 
Cenomanien 
(Lower Plainer). 
18 
„ mnltistriata, Rss. 
Trich. and Arr. ... 
Turonien 
(Middle Plsener). 
19 
Scala (?) Clementina, Mich. ... 
Oot. 
Gault. 
20 
„ subturbinata, d'Orb. (Haidingen, 
Binkh.), 
Arr. 
Senonien of Maest- 
richt. [Aachen 
21 
„ striatucostata, MUll. 
Arr. 
Senonien near 
22 
Burtincllu con cava , Sow. 
Arr. 
Chalk (Turonien). 
23 
Rissoina acuminata, MOil. 
Arr. 
Senonien near 
Aachen. 
24 
Euchrysalis gigantea, Stol. 
Trich. and Arr. ... 
Cretaceous beds in 
Sth. Africa, 
Probably Cenomanien. 
25 
Ampullina bulbiformis, Sow. ... 
Oot., Trich. and Arr. 
Turonien beds oi 
the Alpine creta 
ceous deposits. 
Probably also occurring 
in Texas. 
26 
Euspira rotundata, Sow. ... 
Arr. 
Chalk (Turonien). 
27 
,, lirata, Sow. ... 
Ziziphinus Geinitzianus, Rss. ... 
Arr. 
Turonien. 
28 
Trich. and Arr. ... 
Turon. beds of Ger¬ 
many. 
29 
Solariella radiatula, Forbes, (Trochus 
glaber, Miill.). 
Oot., Trich. and Arr. 
Senonien near 
Aachen. 
30 
Avellana eiongata, Guer. 
Oot. 
Cenomanien. 
