The spider cytogenetic database

Current version: 9.5 (Jan 10, 2021)

Douglas Araujo, Marielle Cristina Schneider, Emygdio Paula-Neto and Doralice Maria Cella


In this site, there is a compilation of all cytogenetic data published on spiders (796 spider species of the 49.075 taxonomically known), considering only papers published in scientific journals and not abstracts presented on scientific meetings, thesis or other materials of restrict access. This compilation includes the species names, according to the World Spider Catalog, version 21.5 (WSC, 2020), accessed on Jan 08, 2021.

The site will be revised every 6 months (in January and July) to add new chromosomal data available on literature and changes in spider taxonomy.

To cite this  website in a publication:

Araujo, D.; Schneider, M.C.; Paula-Neto, E.; Cella, D.M. 2021. The spider cytogenetic database. Available in

If you have questions, comments and/or would like to contribute with some cytogenetic data, please contact us:

Introduction of Database Families - Cytogenetics of spiders Bibliography Arthropoda cytogenetics group Scorpion database Pseudoscorpion database Harvestmen database Chromosomal analyses