genomic/cDNA libraries for Xenopus

[Kay Hofmann]

Hi,
I am posting this for a collegue of mine:

Does anyone know of a commercial source for genomic libraries
of Xenopus laevis (a frog, by the way). Pointers to cDNA libraries,
especially of brain tissue are also welcome.

We already checked the major suppliers of DNA libraries but it seems
to be nothing available.

Thanks a lot,
                Kay Hofmann
                 Universitaet Koeln