| Sigalionidae () | 
	
		
	
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| benthic; marine; depth range 49 - 979 m | 
	
	
	
		| Western Central Atlantic:  from Florida to Quintana Roo, Mexico. | 
	
		
	| Characterized by long palps, exceeding segment eleven; with first elytra oval and notched with expanded lobes separated by the notch, and lateral margin convex; second elytra oval with one  posterior  process;  elytra  and  parapodia  with  papillae  entire;  neurochaetae  from  segment  III  with  blades bifid. | 
	
	
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    | Not Evaluated (N.E.) Ref. 123251) | 
  
  
 		
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