AB:     Bibliography for AB

• Mozley (1926: 58), as Punctum pygmaeum
  
• Kralka (1986: 159)
  
• Loscasciulli, Boag (1987: 79), as Punctum pygmaeum
  
• Neckheim (1997: 4)
  
• Robb, Samuel (1990: 1978)
  
• Van Es, Boag (1981: 77)
  
• Berry (1922: 16), as Punctum pygmaeum
  
• Boag, Wishart (1982: 2634), as Punctum pygmaeum
  

MB:     Bibliography for MB

• Dall (1905: 53), as Punctum pygmaeum
  
• Hanham (1899: 3), as Punctum pygmaeum
  

NB:     Bibliography for NB

• La Rocque (1961: 41)
  
• Bailey (1903: 22), as Microphysa pygmaea
  

NL:     Bibliography for NL

• La Rocque (1961: 46)
  
• Pilsbry (1948: 644)
  
• Vanatta (1930: 133), as Punctum pygmaeum minutissimum
  
• Vanatta (1927: 113), as Punctum pygmaeum
  
• Brooks (1936: 93), as Punctum pygmaeum minutissimum
  
• Brooks, Brooks (1940: 70), as Punctum pygmaeum minutissimum
  

NS:     Bibliography for NS

• Davis (1985: 89)
  
• Davis (1990: 4)
  
• Davis (1992: 130)
  
• Davis (1995: 31)
  
• MacMillan (1954: 396)
  

ON:     Bibliography for ON

• Grimm (1996: )
  
• Wood (1955: 9)
  
• Herrington, Oughton (1940: 43), as Punctum pygmaeum
  
• Oughton (1948: 39), as Punctum pygmaeum
  
• Pilsbry (1948: 644)
  
• Whelan, Oughton (1939: 100), as Punctum pygmaeum
  
• Walker (1917: 42), as Punctum pygmaeum
  

PE:     Bibliography for PE

• Pilsbry (1948: 644)
  

QC:     Bibliography for QC

• Dall (1905: 53), as Punctum pygmaeum
  
• Hanham (1897: 99), as Punctum pygmaeum
  
• La Rocque (1936: 51), as Punctum pygmaeum
  
• La Rocque (1962: 39)
  
• Pilsbry (1948: 644)
  
• Lauriol, Deschamps, Carrier, et al. (2003: 795)