Nice plants

I was at Albany Aquarium today to get another SAE and I saw this nice
plant which I thot was an unusual Echinoduras species.  Got home and
checked my books, looks like James page 75 lower.  James calls it a
Crypt. affinus (aff. what???).  Is this a very hard to get plant? 
Anyone else want one ($12 plus shipping)?    Dave

Dave Gomberg, Experimenta      San Francisco CA USA   gomberg at wcf_com