Reversed ezh
Ƹ is a letter of the Latin script. It was used for a voiced pharyngeal fricative in the 1940s, 1950s and 1960s, for example by John Rupert Firth and Terence Frederick Mitchell, or in the 1980s by Martin Hinds and El-Said Badawi.
Although it looks like a reversed ezh, it is based on the Arabic letter Ayin|.