BYRNES: CYCLOPS OF FRESH WATER. 43 



PLATE XIII. CYCLOPS BICOLOR. 

 Camera Drawings. Leitz. 



Fig. I. An adult female, showing the general proportions of the body. 

 The figure shows the body slightly twisted, so that the thorax is seen from the 

 side, while the abdomen is seen from a dorsal view. 



Fig. 2. The left antenna of Fig. i, showing twelve segments. C. bicolor 

 has usually but eleven segments in the antennas. 



Fig. 3. The caudal stylets of Fig. i. 



Fig. 4. The fourth pair of swimming feet of Fig. i, showing two-jointed 

 rami. 



Fig. 5. The ventral view of the fifth thoracic segment with the rudi- 

 mentary fifth feet and the first abdominal segment. 



PLATE XIV. CYCLOP.S PHALERATUS. 



Camera Drawings. Leitz. 



Fig. I. An adult female, showing the general proportions of the body. The 

 antennae show ten and eleven segments. 



Fig. 2. The ventral view of the abdomen of Fig. i, showing the recep- 

 taculum seminis and the serrated margins of the fifth thoracic and the fourth 

 abdominal segments. 



Fig. 3. The left antenna of Fig. i, showing eleven segments present. 



The right antenna of Fig. i, showing but fen segments present. 



The caudal stylet of Fig. i. Ventral view. 



The left rudimentary fifth foot of Fig. i. 



An adult female. 



The caudal stylet of Fig. 7, showing oblique rows of spines. Dorsal 



The left rudimentary fifth foot of Fig. 7. 



PLATE XV. CYCLOPS FLUVIATILIS. 

 Camera Drawings. Leitz. 



Fig. I. An adult female, showing the general proportions ot the body. 

 The antennae contain twelve segments. The first, fourth and ninth segments 

 of the antennae bear exceptionally long hairs and setas. 



Fig. 2. The rudimentary fifth foot of Fig. i. 



CYCLOPS FHIBRIATUS. 



Camera Drawings. Leitz. 



Fig. 3. An adult female, showing the proportions of the body. The 

 antenna? contain eight segments. 



Fig. 4. The left antenna of Fig. 3- 



Fig. 5. The caudal stylets of Fig. 3, seen from the ventral view. 



Fig. 6. The left antennule of Fig. 3. 



Fig. 7. The rudimentary fifth foot of Fig. 3. 



