#!latex
    \documentclass[12pt,a4paper,index=totoc]{scrbook} 

    \usepackage[OT1]{eulervm}
    \usepackage{classicthesis}
    \usepackage{arsclassica} 
    %\usepackage{makeidx}
    \begin{document}
    \tableofcontents 
    \chapter{Capybara}
    test\index{test} test \index{test2}

    \begin{figure}
    \caption{Test-Figure}
    \end{figure}

    \addchap{Wombat}

    \addcontentsline{toc}{chapter}{\tocEntry{Tabellenverzeichnis}}
    \listoffigures

    \begin{theindex}
    \end{theindex} 
    \end{document}