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.