Well, here is what I have on the families -- mostly Vaught updated by
Southern Synthesis

wondering if anyone could give me the current families for the
>following (current names of the genus or epithet would be a bonus).
>
>SPECIES,        FAMILY          AUTHOR
>STATE           COUNTRY
>Averella        Xanthonicidae   hinkley
>Pilsbry                                [Izabal]
>                Guatemala
>Bifidaria       Pupillidae       tuba intuscostata Clapp,
>1908                 Arizona         USA
>Bulimus         Bithynidae      tentaculatus magnalacustris F.C. Baker,
>1928    Wisconsin
>                USA
>Bulimus sanmarcosensis Pilsbry & Lowe                                   Mexico
>Ceciliodes      (Cecilioides) Ferussacidae      ??
>Pilsbry                              [Tamaulipas]    Mexico
>Coelocentrum    Urocoptidae     hinkleyi
>Pilsbry                           San Luis Potosi Mexico
>Coelocentrum ischnostele Pilsbry                        San Luis Potosi Mexico
>Cyclostoma      Pomatiasidae    bicolor
>Gould                                                Cuba
>Emmerica        (Emmericia) Micromelanidae      longa Pilsbry,
>1909                             San
>Luis Potosi     Mexico
>Emmerica        novimundi       Pilsbry, 1909                   San
>Luis Potosi     Mexico
>Leptinaria      Subulinidae      livingstonensis
>Hinkley                 [Izabal]
>        Guatemala
>Lithasiopsis    Pachychilidae   hinkleyi   Pilsbry
>San Luis Potosi Mexico
>Lithasiopsis mexicanus Pilsbry                          San Luis Potosi Mexico
>Margaites       Trochidae       umbilicus spiralis F.C. Baker
>                Greenland
>Omphalina       Zoniitidae      cuprea polita
>(Pilsbry)                 Tennessee
>                USA
>Paludestrina (see Hydrobia) Hydrobiidae tampicoensis Pilsbry & Hinkley, 1907
>        [Tamaulipas]    Mexico
>Pyramidula      Pyramidulidae   cumberlandiana columba Clapp,
>1920           Tennessee
>                USA
>Schasicheila    Helicinidae     hinkleyi   Pilsbry,
>1920                   [Alta
>Verapaz]        Guatemala
>Schasicheila walkeri    Hinkley, 1920                   Alta Verapaz
>        Guatemala
>Schasicheila xanthia    Pilsbry                         San Luis Potosi Mexico
>Sphaeromelania  (see Pachychilus)Pachychilidae hinkleyi Marshall,
>1921                  Alta Verapaz
>        Guatemala
>Streptostyla    Spiraxidae      gracilis   Pilsbry
>San Luis Potosi Mexico
>Streptostyla minuta     Pilsbry                         San Luis Potosi Mexico
>Streptostyla supracostata Pilsbry                       San Luis Potosi Mexico
>
>Kevin


  John Wolff
2640 Breezewood Dr.
Lancaster, PA 17601