HELIX. 
Discus, Nob. 
Goldfusii, Nob. . 
hortulana, Nob.. 
increscens, Nob. 
involuta, Nob. . 
lapicidella, Nob. 
lapidaria, Nob. . 
Lunula, Nob. 
Maguntina, Deshayes. 
Mattiaca, Steininger. . 
multicostata, Nob. 
Noae, Nob. 
Osculum, Nob. . 
oxystoma, Nob. 
phacodes, Nob. . 
pulchella, Auctor. 
punctigera, Nob. 
Rahtii, Nob. 
Ramondi, Brongn. 
similis , Nob. 
subcarinata, Nob. 
subcellaria. Nob. 
subsulcosa , Nob. 
sylvestrina, v. Zieten. 
verticilloides, Nob. 
villosella , No2. . 
Limnaets, Drap. . 
” 
cretaceus, Nob. 
minor, ob. 
pachygaster,, Nob. 
subpalustris , Nob. 
vulgaris, Pfeiff. 
LITORINELLA, Alex. Braun. 
acuta, Alex. Braun. 
” 
” 
amplificata, Nob. 
MeEranorsıs, Fer... : 
» 
NERITA, 
„ 
Fritzei, Nob. 
Linne. Lam. 
rhenana Nob. . 
Nerıtina, Lam. 
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