Symbol request for a mysterious symbol

Question

Is there a symbol that looks like the element sign $\in $ but instead of being curved, looks more like a less than sign $< $? I have trawled through hundreds of symbols and tried detexify.

Answer 1

Is it like this?

\documentclass{article}
\usepackage{mathtools}
%
\newcommand{\myinleft}{%
\ensuremath{{\mathrlap{<}-}}}
%
\newcommand{\myinright}{%
\ensuremath{{\mathrlap{>}-}}}

\begin{document}
$\myinleft$ $\myinright$ 
\end{document}

If it is a relation symbol as doubted by Tochecz (through his crystal ball ;-)), it is better to use mathrel:

\documentclass{article}
\usepackage{mathtools}
%
\newcommand{\myinleft}{%
\mathrel{{{\mathrlap{<}-}}}}%
%
\newcommand{\myinright}{%
\mathrel{{\mathrlap{>}-}}}

\begin{document}
$ x\myinleft c \myinright d $
\end{document}

Answer 2

Here's a solution that doesn't need any packages; it uses ooalign, one of @egreg's favourite tools for which he gives an excellent tutorial in \subseteq + \circ as a single symbol ("open subset")

Essentially it just overlays the two symbols, $

\documentclass{article}

\newcommand{\myinleft}{%
\mathrel{\ooalign{$<$\cr$-$}}}%
%
\newcommand{\myinright}{%
\mathrel{\ooalign{$>$\cr$-$}}}%

\begin{document}
$ x\myinleft c \myinright d $
\end{document}