5 
“ 
oh 5 
Diaptomus mississippiensis Marsh. 
Fifth foot of male. 
Abdomen of female. 
Fifth foot of female. 
Diaptomus birgei Marsh. 
Fifth foot of male. 
Fifth foot of female. 
Terminal joints of male antenna. 
Canthocamptus minutus. 
Lateral view of male. [‘‘a, testis; b, cephalic ganglion; c, blood 
sinus or dorsal vessel surrounding the intestine; d, anus; e, 
cesophagus; f, frontal sensory plate.’’ | 
Caudal stylet. 
Antenna of male. 
Antennule. 
Foot of first pair. 
Foot of second pair. 
Foot of third pair. 
Foot of fourth pair. 
First maxilliped. 
Mandible. 
Spermatophore. 
Foot of third pair of male. 
Foot of fifth pair of male. 
Foot of fifth pair of female. 
Maxilla. 
