- Albania
- Szederjesi and Csuzdi, 2012b
- Austria
- Christian and Zicsi, 1999
- Azores
- Sciacchitano, 1969; Sims and Gerard, 1985
- Belgium
- Muys, 2013
- Bulgaria
- Zicsi and Csuzdi, 1986b; Valchovski, 2012
- Canary Islands
- Sims and Gerard, 1985; Talavera, 1987, 2007, 2007b
- Channel Islands
- Herm: Sims and Gerard, 1985
- Denmark
- Blakemore, 2007.
- France
- Bouche, 1972.
- Greece
- Szederjesi and Csuzdi, 2012
- Hungary
- Csuzdi and Zicsi, 2003
- Ireland
- Sims and Gerard, 1985
- Madeira
- Talavera, 1996
- Montenegro
- Stojanovic and Karaman, 2003b
- Morocco
- Omodeo et al., 2003
- New Zealand
- Sims and Gerard, 1985
- Poland
- Kasprzak, 1989
- Portugal
- Trigo et al., 1988, 1989
- Romania
- Pop, 2012.
- Russia
- Perel, 1979; Perel-Vsevolodova, 1997; Blakemore, 2007c
- Saint Helena Island
- Sims and Gerard, 1985; Blakemore, 2008c
- South Africa
- Sims and Gerard, 1985
- Spain
- Diaz Cosin et al., 1992; Monroy et al., 2003
- Sweden
- Blakemore, 2007
- Switzerland
- Le Bayon et al., 2013
- Tristão da Cunha Islands
- Holdgate, 1965; Reynolds et al., 2002
- United Kingdom
- Sims and Gerard, 1985, 1999; Isle of Man: Sims and Gerard, 1985
- United States
- Alaska: Reynolds, 1995; Bowser et al., 2013; Oregon: Reynolds, 1995; Tennessee: Reynolds, 1995; Washington: Reynolds, 1995
- National reviews per state:
- Reynolds and Wetzel, 2004: Alaska, Oregon, Tennessee, Washington
- Reynolds and Wetzel, 2008: Alaska, Missouri, Oregon, Tennessee, Washington
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