Shortest rDNA ITS regions known ???

[Dimitri Odorico1]

Could someone please tell me what they think are the shortest rDNA ITS1
and ITS2 regions ever seen in an eukaryote and to be more specific in 
a metazoan, pointing to a reference if possible.  Post or email whatever
is easiest.  Thankyou.

Dimitri

Dimitri.Odorico1 at jcu.edu.au