Cambarus hagenianus

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), pp. 1-32 : 30

publication ID	https://doi.org/ 10.11646/zootaxa.4021.1.1
publication LSID	lsid:zoobank.org:pub:A2B4CF85-6A9C-4823-98D1-6A09961A7F21
DOI	https://doi.org/10.5281/zenodo.5657786
persistent identifier	https://treatment.plazi.org/id/F2278790-9C23-490E-A08B-7EF7FA72FB2A
treatment provided by	Plazi
scientific name	Cambarus hagenianus
status

Treatment

Key to the Form I Males of the Hagenianus View in CoL Group of Procambarus (Girardiella) Lyle, 1938

1a. Without long median spine that overlaps the distal margin of the mesial lobe of the uropods ( Figure 5 View FIGURE 5 b)..................................................................................................... Gracilis View in CoL Group species

1b. With long median spine that overlaps the distal margin of the mesial lobe of the uropods ( Figure 5 View FIGURE 5 a)..................... Hagenianus View in CoL Group species ............................................................................. 2

2a. Caudal process in lateral view rhomboidal in outline, distally with an elongated straight edge ( Figure 4 View FIGURE 4 C)............................................................................................. Procambarus hagenianus View in CoL …3

2b. Caudal process in lateral view triangular in outline, distally coming to a sharp point ( Figure 4 View FIGURE 4 A&B).................... 4

3a. Lateral margin of palm of chelae without a beard of dense long setation, sometimes with short hairs in pits anterior to tubercles ( Figure 22 View FIGURE 22 A–D)........................................................ Procambarus hagenianus hagenianus View in CoL

3b. Lateral margin of palm with a beard of dense setation, sometimes less dense but with long setae ( Figure 21 View FIGURE 21 A&B).................................................................................. Procambarus hagenianus vesticeps View in CoL

4a. Caudal process in lateral view an acute triangle, distinctly shorter than the central projection ( Figure 4 View FIGURE 4 A); lateral margin of palm of chelae without a beard of dense setation ( Figure 1 View FIGURE 1 N).................................. Procambarus holifieldi View in CoL

4b. Caudal process in lateral view an obtuse triangle, subequal in length to the central projection ( Figure 4 View FIGURE 4 B); lateral margin of palm of chelae with a beard of dense setation ( Figure 13 View FIGURE 13 M)................................... Procambarus barbiger View in CoL