MUSEUM OF COMPiUlATIVE ZOOLOGY. 10^ 



EXPLANATION OF THE PLATES. 



PLATE I. 



Fig. 1. Cirolana polita Harger ex Stimpson. Lateral view of female, enlarged 

 three diameters. 



" 1 a. Amennula of another specimen, enlarged twelve diameters. 



" lb. Antenna of same, enlarged twelve diameters. 



" 1 c. Lateral view of pleon of C. polita as in fig. 4, enlarged five diameters. 



" 2. Cirolana spinipes Bate & Westwood. Lateral view of female, enlarged 

 three diameters. 



" 2 a. Antennula of another specimen, enlarged ten diameters. 



" 2 b. Antenna of same, enlarged ten diameters. 



*' 2 c. Pleon of C. spinipes as in fig. 4, enlarged five diameters. 



" 2 d. Pleopod of the second pair of C. spinipes, male, enlarged eight diameters. 



" 3. Cirolana impressa Ilarger. Lateral view of female, enlarged three diam- 

 eters. 



" o a. Antennula of another specimen, enlarged twelve diameters. 



" 3 b. Antenna of same specimen, enlarged twelve diameters. 



" 3c. Pleon of C. impi-essa as in fig. 4, enlarged five diameters. 



" 3 d. Pleopod of the second pair of C. impressa, male, enlarged eight diameters. 



" 4. Pleon of Cirolana concharnm Harger ex Stimpson, showing the first five 

 segments in a lateral view, with dotted outline of last thoracic seg- 

 ment and its epimeron, enlarged five diameters. 



PLATE II. 



Fig. 1. Cirolana spinipes Bate & Westwood. Last segment of pleon with uro- 



pods, enlarged six diameters. 

 " 1 a. Leg of the first pair, enlarged eight diameters. 

 " 1 b. Leg of the fourth pair, enlarged six diameters. 

 " 1 c. Leg of the seventh pair, enlarged six diameters. 

 " 2. Cirolana polita Harger ex Stimpson. Last segment of pleon with uro- 



pods, enlarged six diameters. 

 " 2 a. Leg of the first pair, enlarged eight diameters. 

 " 2 b. Leg of the fourth pair, enlarged eight diameters. 

 " 3. Cirolana impressa Harger. Last segment of pleon with uropods, enlarged 



six diameters. 



