Caridina tetrazona is a species of freshwater shrimp native to the Wanshan islands in Guangdong Province, southern China.[1] It was described from specimens collected on Dawanshan Island, where it is found alongside Caridina serrata. The name 'tetrazona' refers to the four banded color patter found in this species.
A phylogenetic analysis conducted by Chen, Chen, and Guo (2020) found Caridina Tetrazona to be sister to C. serrata, with both of these species closely related to C. trifasciata. [1] The tree below is summarized from their analysis: