1 
2 
iN) 
wo 
PROSID UB cedeneteckerisnctnsercsse 
. Alderi...... 
. intricata 
> Montagui...........:.scccccessne 
. glabrissima 
. tuberosissima ............005 
. helicoides 
. squalida 
. fluviatilis... 
. Vivipara 
PACH ALIN aes srebicteecidas ote 
. impura 
. ventricosa 
. Grayana 
. piscinalis 
. cristata 
Genus 32. 
Sicaretus.—Lamarck. 
Haliotoideus......... p. 23, pl. II, 
fel ste 
He@xHligirceceevecen sass 3, 4 
Genus 33. 
GaLERIcuLUM.—Brown, 
levigatum p- 23, pl. XIX, 
f. 35, 38 
27, 28 
. Otis... p. 24, pl. LVII, f. 16, 17 
Family V.—IanTHInia. 
Genus 34. 
IANTHINA,—Lamarck. 
. communis ...... p- 24, pl. VIII, 
fal 5.2 
16, 17 
Family VI.—Neriracea. 
Genus 35. 
Nartica.—Adanson. 
monilifera p. 24, pl. XIII, 
525) 83, 20 
p. 25, pl. LVII, f. 14 
pl. XIII, f. 13, 16 
3,6 
18, 20 
p. 130 
Genus 36. 
Nenritina.— Lamarck. 
p. 26, pl. XIII, f. 4, 
5, and pl. XVIII, f. 1, 2, 3 
Family VII.—PERISTOMIDA. 
Genus 37. 
Patupina.—Lamarck. 
p. 26, pl. XIV, 
parler 
. 68, 69 
72,* 73 
74, 75 

son Baveds f. 
Genus 38. 
Assrm1nta.—Leach. 
p. 27, pl. XVIII, 
f. 3, 4 
Genus 39. 
Vatvata.—Miller. 
p. 27, pl. XIV, 
f. 62, 63, 64, 65 
p. 28, f. 66, 67 
Family VIIT.—Lymn&cea. 
Genus 40. 
Lymn a.—Lamarck. 
Section 1.—Elongate ; volutions gra- 
dually enlarging ; spire longer than 
the aperture. 


SYSTEMATIC INDEX. 
Lymy”a. 
Section 2.—Subovate ; body ventri- 
cose; aperture longer than the 
spire. 
5. auricularia......... p- 29, pl. XV, 
f. 29, 30, 31, 32 
6. peregra...... 8, 9, 10, 11, 36, 37, 
38, 39, 40 
eo Involuta <..:3. 202 pl. XVIII, f. 5 
Genus 41. 
AMPHIPEPLEA, pee 
1. glutinosa... 
A ACUSEDIS: cee ccseeacacecser= sue 
Genus 42. 
Paysa.—Drapernaud. 
1. fontinalis p. 30, pl. XIV, 
£54, 55: 
.. 58, 59 
.. 60, 61 
2. acuta 
3. hypnorum 
Genus 43. 
Pranoxsis.—Miller. 
Section 1.—Volutions devoid of a 
carina, rounded on both sides; 
spire slightly concave. 
1. corneus p. 31, pl. XVIII, 
fe Sle oes oo 
-. 52, 53 
a0 Sige) 
Pi XIV, "E46, 47, 
and pl. XVIII, f. 11 
Qalbus! .c-cssceecsce=- = 
3. 
4. shibsicatice 
levis .......... 
Section 2.—Volutions carinated. 
5. carinatus ...... 32, pl. XIV, 
fess Oost 
6. marginatus ............ 39, 40, 41 
HPAVOLEOMME caccestesesaaccensine 44, 45 
8. spirorbis ......... p. 33, f. 42, 43 
Section 3.—Shell shining, trans- 
lucent ; spire deeply umbilicate ; 
volutions provided with a slight 
carina. 
9. nitidus .. 50, 51 
Section 4.—Destitute of a carina ; 
volutions rounded both before and 
behind, and deeply umbilicated. 
TOs CONCOLEUE Sicccccccccccesces: Gis OF 
Genus 44. 
SEGMENTINA.—Fleming. 
1. lineata... p. 33, pl. XIV, f. 48, 49 
Family IX.—Cormmacega. 
Section 1.—Animals with two ten- 
tacula. 
Genus 45. 
CycLostoma.—Lamarck. 
1. elegans ... p. 34, pl. XIV, f. 28 
2. marmorea... pl. XVIII, f. 15, 15 
Genus 46. 
Carycuium.—Miller. 
1. minimum... p. 34, pl. XIV, f. 10, 
1, stagnalis ......... p. 28, pl. XV, and pl. XVIII, f. 15* 
f. 19, 21 
2. palustris .. - 17, 18 Genus 47. 
varieties... a is 7; 14, ls, a 23 Acmr.—Hartmann. 
QeMHOGArecl sak cth oe teanesceecsuc 12, 13] 1. fusca ...... p. 34, pl. XIV, f. 25 
4, elongata p. 29, f. 1, 2, 3, 5|2. minuta .. p. 35, f. 26 
c 

Section 2.—Animals with four ten- 
tacula. 
Genus 48. 
Succrnea.—Drapernaud. 
1. amphibea p. 35, pl. XV, 
f. 41, 42 
«. 34, 35 
pl. XVIII, f. 21 
2. gracilis 
3. oblonga ......... 
Genus 49. 
AcHatina.—Lamarck. 
1. acicula ... p. 36, pl. XIV, f. 82, 
and pl. XVIII, f. 12 
Genus 50. 
Buiimus.—Lamarck. 
1. obscurus... p. 36, pl. XIV, f. 19, 
and pl. XVIII, f. 13 
2. montanus......... pl. XIV, f. 22. 
and pl. XVIII, f. 14 
. lubricus ............ pl. XIV, f. 20 
As, ACUUUB carers conedects asa iPelciehienls 

Genus 51. 
Bat#a.—Gray. 
1. fragilis...... p. 37, pl. XIV, f. 11 
Genus 52. 
Cvausit1a.—Drapernaud. 
Section 1.—Shell smooth; the clau- 
sium or shelly plate with a notch 
at top, fitting into a plait situate 
on the outer lip of the aperture. 
1. bidens Peis Dis LV; f:, 12 
Section 2.— Shells corrugated, and 
with the clausium entire at top. 
Da DIPNCAtHicedsesesesececs Ds OCs fs Lo 
3. rugosa... -14 
4. Rolphii ... eae XVIIL, Fr 31 
DepOUMIA Nn scacccetacsecueras: Pie OUs ts.Oe 


Genus 53. 
Popra.—Lamarck. 
muscorum... p. 39, pl. XIV, f. 7 
unidentata .........ss..005 «4 
[OGG AUCUS, conencasconnsosceccoocecce 
pl. XVIII, f. 33, 34 
p. 40, pl. XIV, f. 5 
pl. XVIII, f. 35, 36 
Ds, VS Seo 

Ales 
Ze 
3. 
4, marginata... 
5. umbilicata... 
7. juniperi 
Genus 54. 
Vertico.—Miiller. 
Section 1.—Shells dextral, nearly 

cylindrical; apertnre externally 
margined. 
1. edentula ...... p- 41, pl. XVIII, 
f, 36* 
2. Pygmea .......cesecccsceees - 37 
Be) CYNGNICED eneaveceseeve - 38 
4. sexdentata ......... a: XIV, “f 8 
5. palustris ......... pl. XVIII, f. 39 
6. Alpestris ..........0000 p. 42, f. 40 
Section 2.—Shell fusiform and sub- 
cylindrical; spiral convolutions 
sinistral; aperture externally 
margined. 
fiz, PUSUREW tessa tumerenatedieeesceces 41 
8. angustior ........000 pl. XIV, f. 9 

16 
1. 
9 
ae 
3. 
4. 
5. hybrida ... 
6. 
7. 
8. 
9. 
10. 
1 
12. rufescens 
132 limbata <c...0.s<s 
Genus 55. 
Azerca.—Leach. 
tridens ...... p. 42, pl. XIV, f. 2 
Genus 56. 
Hexix.—Linneus. 
Snb- Genus 1. 
HELICOGEN A-—Frussac. 
Pomatia......... p. 43, pl. XVI, 
f, 6, 12, 14 
@BPETSA w..cecceees- Oy Lao, 17, 18 
nemoralis ... 1, 2, 3, 4, 5, 6, 7, 
8, 9, 10 
hortensis ... p. 44, f. 11, 12, 19 
pl. XVIII, f. 27, 28 
pl. XVI, f. 16, 
20, 21, 22 
Arbustorum ... 
Sub- Genus 2. 
HELICIGON A-— Férussac. 
lapicida......... p. 45, pl. XVII, 
f. 9, 10, 11 
Sub- Genus 3. 
AmPpLiexus.— Brown. 
pulchella...... pl. XIV, f. 76, 77 
crenella ...... . 78, 79 
Sub- Guts 4. 
HELICELLA.— Feérussac. 
Cantiana p. 46, pl. XVII, 
f. 15, 16, 17 
conosco 50, 51 
Suaeas 47, 53 
. 29, 30 

Carthusiana 



14) fulva’ <:.:. Rualveswouiee 
15. fusca” ses. teece- 7, f. 25, 26 
16. lamellata...... pl. XVIII, f. 47* 
17. aculeata ......... 
18. granulata 
pl. XVII, f. 1 
p. 48, f. 8, 13 
20s TeVelata.c.ccoc-cccclevsvecece Os 4 O 
21. sericea ... pl. XVIII, f. 43, 44 
22. hispida...... pl. XVII, f. 40, 46 
25 concinna.. 
25. virgata ... 
. pl. XVIII, f. 45, 46 
4, depilata p. 49, f. 47, 48 
Sub- Genus 5. 
HELIOMANES.—Ferussac. 
pl. XVII, f. 41, 42, 
43, 44, 45 
26. caperata..... -- 37, 38 
27. pisana...... p. 50, £2 27, 29, 32, 
28. ericitorum 
29. rotundata 
30. pygmea.. 
33, 36, 38, 58 
<0 215, 20,285 34 
Sub- Genus 6. 
VERTICILLAT ©.—Firussac. 
p. 51, f. 14, 18, 
19, 20, 24 
. pl. XVIII, f. 48,* 49 

31. ambilicata... pl. XVII, f. 30, 31 
Sub- Genus 7. 
HYALIN &.— Férussac. 
32. cellaria ......... p. 52, f. 59, 60 
937 alliaria’ -cccccceccee . 48, 52 
34. nitidula...... pl. XV Ul, SE 2 
SPP LUCIO crcccccncscccstesccvaccceus Os 
36. radiatula.... AGS Se Siam 
37. crystallina . 7,8 
38. 
39. 
40. 

OXCAVAED ....ccccccccccncccece Dy 
PUTA 2. ..ccceceecceececeeoes LI, 12 
Sub- Genus 8. 
TriIconosToma-—Férussac. 
obvoluta cea? 14 
