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GLOSSARY 



Abactinal. Upper; opposite actinal. 

 Acervate. Clustered ; heaped. 

 Adambulacral. Close to ambulacral groove. 

 Areolate. Divided into large areas. 

 Erachiolaria. Earval form of starfish. 

 Capitate. With distinct head. 

 Carinate. Keel-shaped. 

 Clavate. Club-shaped. 

 Cryptozonate. Having hidden zones. 

 Diplacanthid. Having 2 spines to a plate. 



the valves. 

 Forcipulate. Forceps-like. 

 Foraminate. Having sessile valvular pedicellariae with a pore between 



