No. 26.] 



ARTHROSTRACA OF CONNECTICUT. 



199 



FIG. 58. Cyathura carinata. 



First pair of legs robust; basal joint and ischium large and 

 articulated to bring the leg well forward; merus short; carpus 

 triangular and extending along the side of the thickened propodus 

 for half the latter's length; propodus subchelate, ovate, much 

 thickened and provided with a tooth-like process near middle of 

 palm; dactyl short and stout and tipped with a slender, curved 

 spine as long as the joint itself. Second and third legs quite 

 similar to each other, much more slender than first pair ; carpus 



