Abacion magnum (Loomis, 1936). North America, USA, North Carolina, Wake Co., Raleigh.

Abacion ?magnum (Loomis, 1943). North America, USA, Alabama, DeKalb Co. Photo courtesy of O. McMonigle.

Abacion magnum (Loomis, 1936), decapitated. North America, USA, Virginia. Photo by N. B. Causey,

Tetracion tennesseensis Causey, 1959. North America, USA, Tennessee, Van Buren Co., McElroy Cave. Photo by T.C. Barr.

Abacion tesselatum Rafinesque, 2930. North America, USA, Kansas, Wyandotte Co., Kansas City. Photo courtesy of A. Williams, http://www.critterzone.com/