76 
Anodonta teres, - ; ‘ 
Paludina genicula, Se ee Sea 
| magnifica, Meant weet 
* Melania excurata, - ; Be on 
Hydeii, : <2 eh 
annulifera, - Z ‘ 2 
salebrosa, F = 
pyrenella, o5. oe eee © 
biteeniata, - : é : 
comma, - Sa ge 
lima, : P , 
alveare, - - _ : Z 
nassula, : é : 
: cylindracea, ee a 
trochiformis, - - : 
vestita, 7 < ; 
| Anculotus preerosus, rae et ge 
subglobosus, a tie MN aeee 
angulatus, ‘Ge eee 
Drmee eee 
monodontoides, - ~- : 
Og tt eS 
pumilus, en 
teeniatus, - : - 
melanoides, - - - 
nigrescens, - 
Ancylus filosus, - - 
ERRATA- 
Page 11, line 14, for is very remarka 
markable. 
Page 10, line 
Page 
* 47 
48 
> =48 
49 
: 50 
51 
- 5l 
ou 
: 52. 
53 
- 54 
54 
: 55 
55 
: 56 
57 
- 59 
60 
2 oe 
61 
61 
- 62 
plate fig. 
DODMDmDDDOoOomoroOowtoOOnrRrRDAK DW SO - 
2 
Fron woe NH SP 
No} 
17 
ble, read are very TC 
3, for irridescent read zridescent. 
a) 

