144 
FIG. PAGE 
9. Brochus arcuatus .........++- 125 
10. Brochus trachiformis ...... 124 
11. Brochus reticulatus ......... 124 
12. Brochus annulatus ......... 125 
13. Brochus striatus ............ 125 
14, 15. Triloculina rotundata. 2 
16, 17. Renoidea oblonga ...... 3 
18, 19. Triloculina minuta 2 
20, 21. Triloculina glabra ...... 2 
22. Mileola concentrica ......... 3 
23. Biloculina elliptica ......... 2 
24. Triloculina bicornis ......... 2 
25. Biloculina marginata ...... 2 
26. Triloculina perforata ...... 2 
27. Triloculina striata 2 
28. Biloculina lactea ........... 2 
29. Lagena perlucida ............ 3 
30, 31. Lagena marginata ...... 3 
32. Lagena squamosa............ 3 
33. Lagena Urne 3 
34, 35. Lagena retorta ......... 3 
36. Lagena striata ............++. 3 
37. Lagena globosa............-.. 126 
38, 39. Biloculina oblonga...... 2 
41, 42, 53, 54. Spirorbis spiril- 
INT” eeneeoncousse Don seoobeoo LR} 
43. Spirorbis corneus ............ 124 
44, Spirorbis annulus............ 124 
45. Spirorbis Nautiloides ...... 123 
46. Spirorbis corrugatus ...... 124 
47. Spirorbis granulatus... ; 
48, Spirorbis carinatus ... 
49. Cornuoides major... 
50. Cornuoides minor... 
51. Spirorbis minutus... 
52. Spirorbis reversus 
. Spirorbis heterostrophus ... 


DESCRIPTION OF THE PLATES. 
60. Spirorbis lucidus ...... 
. Spirorbis heterocliticus 
. Spirorbis conicus 
. Spirorbis striatulus ......... 
Plate LVII. 
SUPPLEMENTARY. 
Pleurotoma Trevellianum . 
Pleurotoma gracilis 
3; 4., Patella ifulvasnoener setter 
5, 6. Bulla punctata............ 
. Scalaria Turtoni ............ 
Lacuna Montagui 
10. Trochus perforatus 
. Trochus Martini 
Fusus Boothii ............... 
. Natica Alderi os 
5. Trichotropis accuminata... 
16, 17. Galericulum Otis 
18. Buccinum carinatum 
19. Fusus Babylonicus 
noe 

Plate LVIII. 
2. Limax arboreus 
2, young.) 
3, Limax maximus... 
4. 5. Limax gagates ... 
6. Limax Sowerbii 
7, 8. Dreissina polymorpha ... 
(a, the byssus; 6, the lower sy- 
phon; c, the upper syphon; 
8, the lower syphon greatly 
magnified. ) 
9, 10. Anodon Cygnea......... 
(a, the foot; b, the upper sy- 
phon; ec, the lower syphon; 
10, the lower syphon greatly 
magnified. ) 
Tr SOWLER, PRINTER 

PAGE | FIG. PAGE 
124] 11. Unio pictorum ............... 82 
123} (a, the foot; b, the upper sy- 
124| phon; c, the lower syphon.) 
124| 12. Pisidium obtusale............ 94 



13. Cyclas cornea ........ 
(a, the syphon; 6, the ho 
93 



(a and b, the double “syien: Cc, 
127| the foot.) 
7 
64 Plate LIX. 
58| 1. Limax maximus—Nilsson’s 
21 “*Cinereo Niger” 131 
128| 2, 3, 4, 5, 6. Limax gagates. 56 
18| (3 and 6, resting position; 4, 
129| young; 5, variety.) 
127| 7, 8. Limax flavus 56 
25| 9, 10, 11, 12, 18. Limax ainhiee 
126 TOUS encom cence aentesteeonecs = 
24| (9 and 13, variety; 10 and 11, 
resting position; 12, common 
variety. ) 
14. Limax Sowerbii ............ 131 
16. Helix agrestis secae ae 
—1|17. Testacella Haliotaidea Seeske 
54 and 131 
131/18. Helix aspersa ies 43 
56|19. Spiculum or dart ............ 
131| 20. Section of ditto ............ 
76 | 21. Orifice of Helix aspersa... 43 
20% iHelixjcaracollatey--.c26-e) — 
23. Helix cellaria 51 
24. Clausilia nigricans 38 
25. Helix nemoralis 43 
79 | 26. Cyclostoma elegans 34 
27. Vitrina pellucida ... 54 
28. Vertigo sexdentata ... 41 
29, Carycium minimum.,.,..... 34 

FINIS. 
SAINT AN 
N’s SQUARE, MANCHESTER. 


FIG. 
30. Neritina fluviatilis 
31. Physa hypnorum 
32. Planorbis corneus............ 
33, 34, 35. Paludina vivipara . 
(34, young; 35, the operculum. ) 
36. Valvata piscinalis............ 
37. Ancylus fluviatilis 
38. Assiminia Grayana ......... 
39. Succinea amphibia ......... 
40, 53, 56. Spawn of Lymnea 
peregra, var. ovata......... 
Eggs of Lymnza peregra 
magnified .. “dcr 
Spawn of Snegined sant 
bia... 
Eggs oF Spe amphibia 
magnified .. eine 
Eggs of Helix pom 
Eggs of Helix nemoralis .. on 
Eggs of Planorbis contortus 
Spawn of Physa fontinalis. 
Egg of Physa fontinalis 
magnified tv.tss+s.ss seers 
49. Spawn of Planorbis corneus 
. Spawn of Paludina impura 
. Spawn of Valvata cristata, 
. Spawn of Paludina ey 
magnified .. ve 
. Spawn of legeerieed peregra 
magnified .. Socnsiond 
. Spawn of Valvate aieaaaee 
. Spawn of Planorbis margi- 
natus magnified ............ 
. Spawn of Planorbis margi- 
NALUS «.......s eee 
. Lymnza stagnalis 
. Eggs of Limax rufus 
41. 
42. 
43. 
44. 
45. 
46. 
47. 
48, 

