568 BULLETIN 152, UNITED STATES NATIONAL MUSEUM 



Plate 38 



Portunus (Achelous) affinis, male (22035), carapace 46 mm. wide, dorsal view 



Plate 39 



Portunus (Achelous) affinis, male (22035), left chela 46 mm. long 



Figure 1. Outer face of chelae. 



2. Ventral view showing abdomen. 



Plate 40 

 Portunus (Achelous) floridanus, male (15043), carapace 20.3 mm. wide 



Figure 1. Ventral view showing chelae. 



2. Dorsal view. 



3. Ventral view showing abdomen. 



Plate 41 

 Portunus (Achelous) depressifrons, male (7513), carapace 20.3 mm. wide 



Figure 1. Ventral view showing chelae. 



2. Dorsal view. 



3. Ventral view showing abdomen. 



Plate 42 



Portunus (Achelous) bahamensis, male (31069), carapace 37.2 mm. wide, dorsaJ 



view 



Plate 43 



Portunus (Achelous) bahamensis, male (31069), carapace 37.2 mm. wide 



Figure 1. Ventral view showing chelae. 



2. Ventral view showing abdomen. 



Plate 44 

 Portunus (Achelous) tuber culatus 



Figure 1. Male (22040), carapace 36 mm. wide, dorsal view. 



2. Same, ventral view showing chelae. 



3. Same, ventral view showing abdomen. 



4. Male, Cape St. Lucas, enlarged, dorsal view. After A. Milne Edwards; 



5. Same, abdomen. 



Plate 45 



Portunus (Achelous) spinicarpus, male (61256), carapace 57.7 mm. wide 



Figure 1. Ventral view showing outer surface of chelae. 



2. Dorsal view. 



3. Ventral view showing abdomen. 



Plate 46 



Portunus (Achelous) iridescens 



Figure 1. Female type (17445), carapace 34.5 mm. wide, ventral view showing 

 chelae. 



2. Same, dorsal view. 



3. Male (17434), carapace 51.5 mm. wide, dorsal view. 



4. Same, ventral view showing abdomen. 



