species authorities

[Pooi-Leng Wong]

-- [ From: Pooi-Leng Wong * EMC.Ver #2.5.02 ] --

Hello,
        I have a long list of species of terrestrial gastropods which act as
intermediate hosts of parasitic nematodes of vertebrates. I am having
difficulty finding the scientific authorities of these gastropods. The
majority of them are European, Russian and Asian species with a few North
American ones thrown in. Are there any compilations of species of gastropods
of the world which provide the authorities as well.
        Thank you in advance.

Pooi-Leng Wong
e-mail: pwong at man.net