[Bill Hunter]

They could well be the same shrimp. Malaya was Peninsular Malaya and Singapore Island and, I think, British Borneo. After independence it became Malaysia including the peninsula, Singapore Island and what was British Borneo. The rest is Indonesia. That is probably where the name Malay or Malaya shrimp came from. It’s possible that before description it was known as Caridina sp. Malaya. Sulawesi may have been part of Malaya at one time, or the same shrimp was found in Malaya. I don’t think the territory is very distinct. The soil pH on Sulawesi appears to vary from 5.3 up to 6.8 and it also contains peat bog which I would assume is low in pH. However, these figures don’t guarantee that any streams will be of a low pH as there is a lot of limestone and uplifted coral.
Just thinking out loud :whistle:
Bill