This C. elegans data was downloaded from the Wormbase site:

ftp://ftp.sanger.ac.uk/pub/wormbase/WS100/CHROMOSOMES/

      Name                    Last modified      Size  Description
      Parent Directory                             -   
      alignments/             2008-06-25 11:52    -   
      chromosomes/            2008-06-25 11:52    -   
      database/               2013-10-01 12:48    -   
      waba/                   2008-06-25 11:52    -