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  Trough Shell have a regionally variable maximum size ranging from 63-95 mm.
 
 
  Trough Shell are broadcast spawners.
 
 
  Trough Shell are found all around New Zealand coasts at depths of 3-7 m.
  
             
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 Key statistics 
	
		
		
		
		
			
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			| 1 Reported commercial catch is calculated for the 12 month period to 30/09/2026 | 
		 
		
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			| 2 Quota value and exports are calculated pro-rata to reported commercial catch for the 12 month period to 30/09/2026 | 
		 
	 
 
             
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