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

Guenter A. Schuster; Christopher A. Taylor; Susan B. Adams

doi:10.11646/zootaxa.4021.1.1

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

Formally Refereed

Authors:

Guenter A. Schuster, Christopher A. Taylor, Susan B. Adams

Year:

2015

Type:

Scientific Journal

Station:

Southern Research Station

DOI:

https://doi.org/10.11646/zootaxa.4021.1.1

Source:

Zootaxa 4021(1): 1-32

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Abstract

Procambarus (Girardiella) holifieldi, new species, is a primary burrowing crayfish from a low-lying field in Perry County, Alabama. It belongs to the Hagenianus Group in the subgenus Girardiella. The new species is morphologically most similar to Procambarus (Girardiella) barbiger. They differ in the size and shape of the caudal processes. Procambarus barbiger has a beard along the mesial margin of the palm of the chela, while the new species lacks the beard. In addition to the description of the new species, the Hagenianus Group is reviewed and new synonymies are provided. We demonstrate that a cephalic process is indeed present in the Hagenianus Group.

Keywords

Procambarus, Girardiella, Hagenianus Group, Gracilis Group, new species, crayfish

Citation

Schuster, Guenter A.; Taylor, Christopher A.; Adams, Susan 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.