572 BULLETIN 152, UNITED STATES NATIONAL MUSEUM 



Plate 75 



Figure 1. Acanthocyclus gayi, male (17617), carapace 23.2 mm. wide. Ventral 

 view showing chelae. 



2. Same, dorsal view. 



3. Same, ventral view showing abdomen. 



Plate 76 



Figure 1. Acanthocyclus hassleri, male (3265), carapace 13.7 mm. wide, dorsal 

 view. 



2. Acanthocyclus albairossis, anterior part of body and appendages, front 



view. 



3. Acanthocyclus albatrossis, W. coast of Patagonia, right chela, outer 



side. After Tozzetti. 



4. Acanthocyclus gayi, Chile, anterior part of body and appendages, front 



view. After Strahl. 



5. Acanthocyclus albatrossis, Puerto Harris, male (12710), carapace 29 



mm. wide, dorsal view. 



6. Acanthocyclus albatrossis, Puerto Harris, male (12710), carapace 29 



mm. wide, ventral view for chelae. 



Plate 77 



Figure 1. Acanthocyclus albatrossis, male, Puerto Harris (12710), carapace 29 

 mm. wide, ventral view. 

 2. Acanthocyclus albatrossis, female, Puerto Harris (12710), carapace 26 

 mm. wide, ventral view for maxillipeds. 



» Plate 78 



Corystoides chilensis 



Figure 1. Male (18509), carapace 7 mm. wide, ventral view. 



2. Female (18509), carapace 9.5 mm. wide, dorsal view. 



3. Male, Rio de la Plata, 7 fathoms, cotype of C. abbreviatus, carapace 



18 mm. long, dorsal view. 



4. Same, front and appendages, enlarged. 



5. Same, left orbital-antennal region, ventral view, enlarged. 



Figures 3-5 after A. Milne Edwards and Bouvier. 



Plate 79 



Figure 1. Bellia picta, male (22066), carapace 28.5 mm. long, front view. 



2. Same, dorsal view. 



3. Same, ventral view. 



Plate 80 



Cancer edwardsii, female (14855), carapace 126 mm. wide, dorsal view 



Plate 81 



Cancer plebejus, female (14845), carapace 82 mm. wide, dorsal view 



Plate 82 



Figure 1. Cancer plebejus, dorsal view, much reduced. After Bell. 

 2. Cancer polyodon, dorsal view, much reduced. After Bell. 



