The Spider Cytogenetic Database

Current version: 12.5 (Feb 29, 2024)

Douglas Araujo, Marielle Cristina Schneider, Emygdio Paula-Neto and Doralice Maria Cella​
Trachelidae  Simon, 1897

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; n = haploid number; 3n = triploid number; 4n = tetraploid number; SCS = sex chromosome system; T = telocentric; A = acrocentric; St = subtelocentric; Sm = submetacentric; M = metacentric; H = holocentric; S = supernumerary chromosome; (?) = dubious description; (*) = designation of the species name not recorded in the taxonomic database.

Valid name Cited as 2n SCS Chromosomal morphology Collection site Bibliography
Afroceto plana Lyle & Haddad, 2010 ---- 22 X1X2 20A+X1X2A South Africa Šťáhlavský et al., 2020
Orthobula sp. ---- 21 X 20T+XT Brazil Dutra et al., 2023
Trachelas japonicus Bösenberg & Strand, 1906 ---- 22 X1X2 20A+X1X2A Japan Suzuki, 1952
Trachelas sp. ---- 24 X1X2 ---- India Datta & Chatterjee, 1983