115
Prairie Crayfish, Procambarus gracilis: Measurements and Ratios: Female
Number Minimum Maximum Mean
Total length
4 62.3 80.6 69.7
Carapace
Total length
4 31.4 41.5 36.0
Postorbital length
4 27.5 36.7 31.3
Aureola
Length
4 13.1 18.3 15.2
Width
4 0.0 0.3 0.1
Chela
Total length
4 20.7 28.9 23.1
Dactyl length
4 12.8 15.1 15.1
Palm length
4 6.6 10.4 8.7
Palm width
4 8.9 12.7 10.3
Finger gap
4 0.0 1.9 0.8
Antenna
Total length
2 32.5 48.0 40.3
Ratios Number Minimum Maximum Mean
Carapace length / Total length 4.00 0.50 0.53 0.52
Aureola length / Carapace length 4.00 0.41 0.44 0.42
Chela length / Carapace length 4.00 0.64 0.70 0.66
Dactyl length / Chela length 4.00 0.62 0.63 0.62
Palm width / Chela length 4.00 0.43 0.45 0.44
