Genus Isidora Gray. 
lamellata E. A. Smith 
obtusispira E. A. Smith. 
Pneumonobr anchia. 
Familie Cyclostomidae. 
Genus Acroptychia Crosse & Fischer. 
aequivoca (Anceyella) Crosse & Fischer 
aTbocinda E. A. Smith 
manicata Crosse 
metableta Crosse 
notabilis E. A. Smith 
pyramidata Sykes 
Genus Tropidophora Troschel. 
a) Subgenus Tropidophora s. str. 
abeülei Grateloup 
alternans Pfr. 
aspera Pot. & Mich. 
balteata Sowerby 
belairi Petit 
betsiloensis E. A. Smith 
bicarinata Sowerby 
boivini Petit 
brevimargo Mouss. 
campanulata Pfr. 
carinifera Sowerby 
cerasta Mabille (spedabüe Petit) 
diromium Morelet 
cnissa Mabille 
cognata Mabille 
congener E. A. Smith 
consanguinea Sowerby 
cuvieriana Petit 
deburghiae live. 
delidosa Fer. 
denansi (Jouss.) Mabille 
deshayesiana Petit 
discotropis Morelet 
dupontiana Morelet 
dyganum Mabille 
erronea Nevill 
euchilus Pfr. 
eustola Crosse & P. Fischer 
fdostriata Sowerby 
formosa Sowerby 
freyi Bttg. 
jousseaumi Mabille 
