Procambarus spp. are burrowing crayfish that spend most of their lives in complex underground tunnels.  They’ve thus taken on a bulldozer-like morphology – like supersized versions of reef pistol shrimps.

The newly described Procambarus holifieldi is most closely related to Procambarus (Girardiella) barbiger, another crayfish from the South (Mississippi).

Originally published on October 6, 2015