The website was produced by the Department of Invertebrate Zoology.
Spiders are notoriously difficult to study, the correctness of their depiction with regard to taxonomically significant details depends very much on the author's artistic vision.
The materials presented in the catalog consist of photos and scans of the species' exterior, males' palps, females' epigynes and vulvas, and other important organs. The website also informs about the respective species abundance in Tatarstan.
The works on the collection are ongoing.