Very good, its just that a lot of people don't realise they are the same species. It is actually getting really hard to tell which shrimp can go with which, because of the common names given without the scientific to give you some warning.
For example in the colours of cherry shrimp that I know are available in Australia and are all sold just via their common name includes Red Cherry, Sakura, fire, painted fire, red rili, yellow rili, yellow, chocolate, blue, Sunkist and I think a green which I am not sure of its name.
The diversity in cherry shrimp is truly amazing.