It appears that the new ‘Blue Poso’ shrimp is indeed Caridina longidigita. To avoid any further confusion, I will be changing all references to C. caerulea to ‘Blue Morphe’ shrimp within my blog articles and further posts.
Due to the lack of images on the internet, it is impossible for me to determine the normal colouration of C. longidigita, but it has been reported that very few show this blue colouration. (Perhaps it is due to stress afterall?). Below is an image of this species.
“Longidigita” literally means “long fingers”. This is a reference to this species unusually long front pereiopods, with which it makes unique wide sweeping movements when foraging.
Yet another interesting Sulawesi species!