Likely young-of-year? Excavated from ~10 cm down. Reed canary grass meadow marsh, floods in spring to hip-height, isolated vernal area. Must have been colonized an earlier year from nearby overland movement
Probably Digger Crayfish? Wondering if this is in range of the other terrestrial species. Habitat might not be appropriate though
About a dozen out within the flooded meadow (all submerged). Air temp 5C, assuming water temp about the same.
This female had the most developed young. Most others still had eggs under their tail