From: Jerzy Prószyński <jerzy.proszynski@wp.pl>
Date: 15 November 2020 at 10:31:24 CET
To: Ed Nieuwenhuys <ednieuw@xs4all.nl>
Subject: Fwd: Fwd: Fwd: Fwd: “Salticidae (Araneae) genera of the world - an atlas” - a new electronic book in PDF is now available for free loading

 Respected Arachnologists, Dear Friends,

This is to inform you that a new electronic book in PDF,
Salticidae (Araneae) genera of the world and species diversity – an atlas” by J. Prószyński (1258 pages, 457 MB,
modified version of Salticidae Database 1995-2016 - designed for storage on personal computers and in libraries) is now available for free loading from Internet:


and will remain accessible there for a limited time longer.


Alternative Download from this site:



            “Salticidae (Araneae) genera of the world and species diversity – an atlas” by J. Prószyński, 2020.
             vol. 1 of the book (468 pages, 135 MB) documents diagnostic characters of 641 Salticidae genera, each of them accessible in 1 second by hyperlinks, or reached alternatively by slow scrolling of screen - which is favoring comparison and understanding setup of similarities and differences between genera. It proposes new arrangement of diversity of genera, aimed at facilitation identifications of groups of genera. New INTRODUCTION chapter explains easily setup of groups of genera and contains hyperlinks to chapters.
         vol. 2 (790 pages, 350 MB) contains attachments documenting diversity of 4800 species (of genera shown in vol. 1), based on revision of type specimens and on type species.

This work can serve as a verification source because brings together copies of original diagnostic characters of type species, selected as the most practicable during 60 years of revisionary research of J. Prószyński and used routinely by leading specialists in taxonomy of Salticidae. It is submitted now as an aid for arachnologists working on insufficiently known Salticidae faunae worldwide, especially for preparation of identificatory keys, placement of new species and genera, as well as verification of previously, or currently taken taxonomic decision (including merging or splitting genera and checking synonymy).
As a treatise on taxonomy of Salticidae, it is unique by holistic approach to diversity of genera and species, abstains from the current speculations on formal phylogeny, the provided data have been kernels of taxonomic diagnoses of Salticidae during 150 years span of their research history.

In difference to Simon, 1901-1903 which I used to consult frequently 120 years after publication, the life of computer publications, too large for printing on paper, is limited to duration of computer software used for their storage, particularly relational databases.
“Salticidae (Araneae) genera of the world ..." collection of diagnostic drawings of type specimens, rewritten as PDF, can serve Salticidae taxonomist also in the more distant future, provided that at least a few copies, in personal computers, will survive next improvements in computer software. Out of these considerations, I appeal to arachnologists:


You need not to be not interested personally in the view expressed in the book and have different views. What you are being asked for is loading a copy of the book from the  Internet and store it in your computer, or deposit in a scientific library, you have access to, in a purpose to enrich choice of taxonomic ideas for future taxonomists of Salticidae.

Thank you in advance! Best wishes and greetings


Jerzy Prószyński
Professor Emeritus
e-mail: jerzy.proszynski@wp.pl