There are at least five artists who use this name:
These are photos from concerts where Scylla played, so they may be of other bands that played the concert as well.
In Honor Of The Father: Griffin Kolinski Memorial Show Aug 22, 2015 Mesa, Arizona, United States Uploaded by Trevor Ronde
Metalfest Jun 21, 2013 Jaworzno, Poland Uploaded by Ziemi100feles
Scylla / The Longpigs / Dragdoll Jul 30, 1995 Glasgow, Scotland, United Kingdom Uploaded by John Collins