How do onychopod branchiopods capture prey?

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In the infraorders Onychopoda and Haplopoda, the trunk limbs are specialized for grasping prey, a departure from the filter-feeding mechanism common to many other branchiopods. While many branchiopods use their limbs to filter, scrape, or gather food particles into a ventral food groove, the onychopods have modified these appendages to actively capture their prey.12