How do I install Dropbox?

[Porteño]

I'm currently using a version of Dropbox with knoppix v7.4.2 on pendrive installed as said at https://www.dropbox.com/install?os=lnx

It works, but has no gui and I can't make preferences work for autostarting. Anyway I will keep using it until the next version of Knoppix.

My question is:
What line of synaptic search have I to select
nautilus-dropbox
or
php-dropbox ?

Thanks,
Eduardo