1. 
   Regularia
   Reg`u·la'ri·a (rĕg`u*lā'rĭ*ȧ) noun plural [ New Latin ] (Zoology) A division of Echini which includes the circular, or regular, sea urchins.
   Found op http://www.encyclo.co.uk/webster/R/41
   
   
2. 
   regularia
   <zoology> A division of Echini which includes the circular, or regular, sea urchins. ... Source: Websters Dictionary ... (01 Mar 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?regularia
   
   
3. 
   Regularia
   • (n. pl.) A division of Echini which includes the circular, or regular, sea urchins.
   Found op http://thinkexist.com/dictionary/meaning/regularia/
   
   

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