The Spider Cytogenetic Database
Current version: 12.5 (Feb 29, 2024)
Douglas Araujo, Marielle Cristina Schneider, Emygdio Paula-Neto and Doralice Maria Cella
Trechaleidae Simon, 1890
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 |
|---|---|---|---|---|---|---|
| Neoctenus comosus Simon, 1897 | ---- | 20 | X1X2 | 18T+X1X2T | Brazil | Araujo et al., 2015a |
| Neoctenus comosus Simon, 1897 | ---- | (22) | ---- | 22T | Brazil | Araujo et al., 2015a |
| Neoctenus comosus Simon, 1897 | ---- | (23) | ---- | 23T | Brazil | Araujo et al., 2015a |
| Paratrechalea ornata (Mello-Leitão, 1943) | ---- | 24 | X1X2 | ---- | Uruguay | Albo & Postiglioni, 2011 |
| Syntrechalea syntrechaleoides (Mello-Leitão, 1941) | ---- | 28 | X1X2 | 26T+X1X2T | Brazil | Araujo et al., 2015a |
| Syntrechalea syntrechaleoides (Mello-Leitão, 1941) | ---- | 28+1S | X1X2 | 27T+X1X2T | Brazil | Araujo et al., 2015a |
| Syntrechalea syntrechaleoides (Mello-Leitão, 1941) | ---- | (30) | X1X1X2X2 | 26T+X1X1X2X2T | Brazil | Araujo et al., 2015a |
| Trechalea bucculenta (Simon, 1898) | ---- | 28 | X1X2 | ---- | Uruguay | Albo & Postiglioni, 2011 |
| Trechaleoides biocellata (Mello-Leitão, 1926) | ---- | 28 | X1X2 | ---- | Uruguay | Albo & Postiglioni, 2011 |