EXPLANATION OF THE PLATES. 



185 



PLATE IX. 



First abiloiiiiiiul iqii)emlaf/es of male. 

 Form II. 



Form II. 



Form I. 



hamulatus Fax. 



Form II. . 

 Girarcliauus Fax 



Form II. . 

 cornutus Fax. Form I 



Form I. . 

 medius Fax.* Form I. 



Form I. . 

 forceps Fax. Form I. 



Form I. . 



Form II. . 



Form II. . 

 Putnaiui Fax 



Form I. 



Form II. 



Form II 



spinosus BrsDY ? Lauderdale Co., Ala. 



Form I 



spinosus BuNDY. Etowah River, Ga. Form II 



Form II 



rusticus GiR. Yellow Springs, Ohio. Form I. 



Form I 



Form II. ...... . 



Form II 



Harrisonii Fax. Form I. .... 



Form I. ...... . 



propinquus, var. Sauboruii Fax. Form I. 



Form I 



Form II  



Form II 



Form I. 



X 12 

 X 12 

 X 10 

 X 10 

 X (5 

 X 6 

 X 6 

 X fl 

 X 8 

 X 8 

 X8 

 X8 

 X4J 

 X 4i 

 X 8 

 X 8 

 X 6 

 X 6 

 X 4 

 X I 

 X I) 

 X6 

 X fi 

 XO 

 X 

 X 

 X 5 

 X 5 

 X IS 

 X 6 



Fi.2 



1. 



r. 



1'. 



2"^. 



3. 



3'. 



3^ 



3»'. 



4. 



4'. 



4^ 



4»'. 



PLATE X. 



Firist abdondmd appciiduges of male. 



Cauibarus Sloanii Busdy. Form 1. X fi 



The same. Form I X fi 



The same. Form II X 8 



The same. Form II X 8 



Cambarus com|iressns Fax. Form I. . . . . . . . . . . X 8 



The same. Form 1 X 8 



The same. Form II X 12 



The same. Form II X 12 



Cambarus Alabamensis Fax. Form I X '> 



The same. Form I X 



The same. Form II X fi 



The same. Form II X fi 



Cambarus Mississippieusis Fax. Form I "X ^y 



The same. Form I X 6 



The same. Forui II X 6 



The same. Form II X 6 



* The outer ramus was warped hy drying when the specimen wa.s in the artist's hands. 



24 



