— 39 — 
NER. Schmidtii Gray 
reclivita Say 
punctata Fer. 
pulligera Lam. — rubella MiilL 
(corona Lam. 
\Var. major 
barbaback Fer. 
N. N. 
Calecutium 
Vera Crux 
Marlinica 
India 
Bourbon 
id. 
Mexicum 
Otahiti 
crepidularia Lam. — purpurea Budgin — con- 
centrica Menke olim 
NAVICELLA Lam. ( Septaria Fer. — Cimber Montf. 
•— Scapha Klein ) 
ellyptica Lam. _ borbonica Fer. — ■ Nerita 
porcellana Chemn. 
tessellata Lam. — tessellaria Encvcloped . 
ANCYLUS Geoffroy 
costatus Villa (3o) 
capuloides Jan 
fluviatilis Drap. riparius Desmarest 
spinarosae Schmidt — deperditus Parr. 
recurvus Parr. 
lacustris MiilL • — ■ Patella oblonga Turton 
culicoides D’ Orbigny • — ■ bahiensis Moricand 
Nova HoL 
Bourbon 
Sumatra 
Sardinia 
Langobar, 
It. bor. 
Carniola 
Sicilia 
It. bor. 
Bahia 
B. B I V A L V 1 A 
DREISSENA VanBeneden (Tichogonia Rossm.) 
Thorey Stentz 
'wolgae Chemn. __ wolgensis Gray Cliem- 
nitzii Fer. — Hagenii Baer — li- 
neata Waardemburg __ Mytilus 
| arca Kichx 
\Var. ) polymorpha Pallas — pygmaea Andr. 
i mminuta auctor ? 
| Far. ) minutissima auctor? 
cubita auct . ? 
AETHERIA Lam. 
Cailliaudi Fer. 
plumbea Fer. — semilunata Lam. __ Carteroni 
Michelin 
ANODONTA Bruguiere 
exotica Lam. ■ — Anodon anserinum , radiatum 
et giganteum Spix 
anserina De Crist, 
ventricosa Sow. 
guyenensis auct. ? 
Batavia 
Hungaria 
Wolhynia 
America 
Dania 
id. 
Caro! in a 
AEgyptum 
Senegal 
Mon. Video 
S. Helena 
Buen. ayres 
Guinea 
