CoS 
a 
12. 
15. 
21. 
22. 
SCORN Ss 
Canthocamptus illinoisensis. 
Antenna of female. 
Fifth foot of female. 
Antennule. 
First foot. 
Caudal stylet. 
Canthocamptus northumbricus var. americanus. 
Fifth foot of female. 
Antenna of female. 
Maxilliped. 
Caudal stylet. 
Antenna of maie. 
First foot. 
Fourth foot. 
Fifth foot of male. 
Frontal area. 
Canthocamptus tenuicaudis. Stylets. 
ne tenuicaudis. Fifth foot of female. 
Cyclops serrulatus. 
Fifth foot. 
Fourth foot. 
Outer ramus of first foot. 
Canthocamptus northumbricus. 
Inner ramus of third male foot. 
Beak. 
Maxilla. 
