Chrysthanemum question

I am looking for a mum type I haven't seen for some time. It is similar to the spider or Fuji mum, but the ends of the petals are shredded looking, rather than smooth and finished like the spider mum. I thought they were called star mums, but cannot locate them on the web under that name.
Does anyone know what the name of it is? Or when I can find them?
Thank you.

 

Spider chrysanthemum