1. 
   Acaste
   [genus] Acaste is a genus of extinct trilobite of the order Phacopida which lived throughout the Silurian period. They are characterized by a convex dorsal surface, an absence of spines, a shortening of the head-shield and a general rounding off of all angles. Species include Acaste downingi...
   Found op http://en.wikipedia.org/wiki/Acaste_(genus)
   
   
2. 
   Acaste
   Acaste was a name attributed to two characters in Greek mythology. ...
   Found op http://en.wikipedia.org/wiki/Acaste
   
   

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