576 BULLETIN 152, UNITED STATES NATIONAL MUSEUM 



Plate 110 



Figure 1. Daira americana, female (5768), carapace 36.6 mm. wide, ventral view. 



2. Same, dorsal view. 



3. Carpoporus papulosus, male, Florida Strait, carapace 8 mm. wide. 



After A. Milne Edwards. Chela, outer view. 



4. Same, anterior view showing respiratory orifices between the manus 



and carpus. 



5. Same, antennal and buccal regions. 



6. Same, dorsal view. 



Plate 111 



Figure 1. Carpoporus papulosus, male (15006), carapace 14.7 mm. wide, front 

 view. 



2. Same, dorsal view. 



3. Same, ventral view. 



Plate 112 



Lipaesthesius leeanus 



Figure 1. Male holotype, carapace 11.7 mm. wide, front view. 



2. Same, dorsal view. 



3. Same, ventral view. 



4. Unique type of Medaeus rugosus Boone, female, dorsal view. 



5. Male, Maria Madre Island, carapace 7.6 mm. wide, dorsal view. 



6. Same, ventral view. 



Plate 113 



Figure 1. Medaeus spinimanus, male (31085), carapace 34.5 mm. wide, front view.. 



2. Same, dorsal view. 



3. Ventral view for abdomen and sternum. 



Plate 114 



Figure 1. Medaeus lobipes, male holotype, carapace 25.5 mm. wide, front view,. 



2. Same, dorsal view. 



3. Same, ventral view showing abdomen. 



Plate 115 



Plaiyxanthus orhignyi (46331), carapace 79 mm. wide, dorsal view. Original: 

 painted the natural colors 



Plate 116 



Figure 1. Plaiyxanthus crenulatus, Patagonia, type male, carapace 57 mm. wide^. 

 dorsal view. After A. Milne Edwards. 

 2. Plaiyxanthus orhignyi, dorsal view. After Milne Edwards and Lucas.. 



Plate 117 



Plaiyxanthus crenulalus, male (57124), carapace 72 mm. wide, dorsal view 



Plate 118 



Plaiyxanthus crenulatus, male (57124), carapace 72 mm. wide, ventral view 



showing chelae 



