Figure 4 in Distribution, natural history, and conservation of Cambarus dubius in Pennsylvania

Figure 4. (a.) Cambarus dubius. (b.) Cambarus dubius burrow with a distinct mud chimney. (c.) Skunk cabbage wetland with Cambarus dubius burrows. (d.) Juvenile Cambarus dubius aggressively attacking baited line used to lure crayfish out of the burrow as described by Loughman et al. (2013).