Schuster, G. A., Taylor, C. A., & Adams, S. B. (2015).

Procambarus (Girardiella) holifieldi, a new species of crayfish (Decapoda: Cambaridae) from Alabama with a revision of the Hagenianus Group in the subgenus Girardiella

. Zootaxa, 4021(1), 1–32. https://doi.org/10.11646/zootaxa.4021.1.1