Rear Brake pad confusion

[357454]

I recently replaced the front brake pads on my Ulysses XT with Lyndall Golds and was very impressed with the results, I now want to change the rear pads. Lyndall do not list a rear pad for my bike and when I research it on the internet some retailers show a Lyndall available however each of then list a different part number. Any assistance you can offer would be appreciates.