| Alcidae () | 
	
		
	
	| max.weight: 293.3 g | 
| others; marine | 
	
	
	
		| Northwest Pacific:  Japan, Sea of Okhotsk, Kamchatka Peninsula. | 
	
		
	| Culmen: 2.02 cm; tarsus: 1.81 cm; wing: 14.12 cm. | 
	
	
		| Species split from Marbled Murrelet in 1996. Pursuit diving; glacial-affected; SST<9oC; coastal (Ref. 356).  Also found in the pelagic zone (Ref. 116102). | 
	
	
    | Near Threatened (NT); Date assessed: 10 August 2018 (A2c+3c+4c) Ref. 123251) | 
  
  
 		
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