Looking these up in an unpublished list by Gary Coovert, I find the following:

>----- Original Message -----
>From: helmut nisters <[log in to unmask]>
>To: <[log in to unmask]>
>Sent: Wednesday, February 07, 2001 1:24 PM
>Subject: Marginellidae and Cystiscidae
>
> >   **probably Protoginella  agatha (Laseron, 1957)
Volvarina

> > australis (Hinds, 1844)
Mesoginella

> > graciclis (C. B. Adams, 1851)
Volvarina (gracilis)

> > hematita (Kiener, 1834)
Eratoidea

> > **Cystiscus***jewetti
Cystiscus (jewettii)

 > spryi Clover, 1973
Serrata (1974)

 > Volutella pyriformis
Carpenter,  1865 is margaritula (Carpenter, 1857)
Pease, 1868 is translata (Redfield, 1870)



Helmut , I have to look over this list again , the "easy ones "are done
>!!!!!
>Many greetings , and succes !!!!
>Jan Neefs

John Wolff
2640 Breezewood Dr.
Lancaster, PA 17601-4804