When encountering a Stink Ray on Linux the client crashes with the following error screen:
This is due to a misnamed SGstungray.lua, renaming "dont_starve/data/DLC0002/scripts/stategraphs/SGstungray.lua" to "SGStungray.lua" (Note the "s" changing to upper-case) fixes the issue.
I first reported on this issue in February 2016 and upon playing the game again today I can confirm it's still an active bug in the live Linux version. And honestly it's a trivial bug to fix that makes the Linux version unplayable for any meaningful length of time.
Encountering a Stink Ray on Linux