Vaejovidae
Vaejovidae Thorell, 1876 Cited as = species name adopted by the researcher that performed the cytogenetic analysis; 2n = diploid number of males and in parenthesis, diploid number of females; M = metacentric; SM = submetacentric; ST = subtelocentric; A = acrocentric; T = telocentric; ? = dubious description.
Urodacidae
Urodacidae Pocock, 1893 Cited as = species name adopted by the researcher that performed the cytogenetic analysis; 2n = diploid number of males and in parenthesis, diploid number of females; M = metacentric; SM = submetacentric; ST = subtelocentric; A = acrocentric; T = telocentric; ? = dubious description.
Scorpiopidae
Scorpiopidae Kraepelin, 1905 Cited as = species name adopted by the researcher that performed the cytogenetic analysis; 2n = diploid number of males and in parenthesis, diploid number of females; M = metacentric; SM = submetacentric; ST = subtelocentric; A = acrocentric; T = telocentric; ? = dubious description.
Scorpionidae
Scorpionidae Latreille, 1802 Cited as = species name adopted by the researcher that performed the cytogenetic analysis; 2n = diploid number of males and in parenthesis, diploid number of females; M = metacentric; SM = submetacentric; ST = subtelocentric; A = acrocentric; T = telocentric; ? = dubious description.
Liochelidae
Liochelidae Fet & Bechly, 2001 Cited as = species name adopted by the researcher that performed the cytogenetic analysis; 2n = diploid number of males and in parenthesis, diploid number of females; M = metacentric; SM = submetacentric; ST = subtelocentric; A = acrocentric; T = telocentric; ? = dubious description.
Iuridae
Iuridae Thorell, 1876 Cited as = species name adopted by the researcher that performed the cytogenetic analysis; 2n = diploid number of males and in parenthesis, diploid number of females; M = metacentric; SM = submetacentric; ST = subtelocentric; A = acrocentric; T = telocentric; ? = dubious description.
Euscorpiidae
Euscorpiidae Laurie, 1896 Cited as = species name adopted by the researcher that performed the cytogenetic analysis; 2n = diploid number of males and in parenthesis, diploid number of females; M = metacentric; SM = submetacentric; ST = subtelocentric; A = acrocentric; T = telocentric; ? = dubious description.
Chaerilidae
Chaerilidae Pocock, 1893 Cited as = species name adopted by the researcher that performed the cytogenetic analysis; 2n = diploid number of males and in parenthesis, diploid number of females; M = metacentric; SM = submetacentric; ST = subtelocentric; A = acrocentric; T = telocentric; ? = dubious description.
Chactidae
Chactidae Pocock, 1893 Cited as = species name adopted by the researcher that performed the cytogenetic analysis; 2n = diploid number of males and in parenthesis, diploid number of females; M = metacentric; SM = submetacentric; ST = subtelocentric; A = acrocentric; T = telocentric; ? = dubious description.
Buthidae
Buthidae C.L. Koch, 1837 Cited as = species name adopted by the researcher that performed the cytogenetic analysis; 2n = diploid number of males and in parenthesis, diploid number of females; M = metacentric; SM = submetacentric; ST = subtelocentric; A = acrocentric; T = telocentric; ? = dubious description.