THE SPIDER CRABS OF AMERICA 593 



Fig. 10. Pitho quadridentata, cotype, carapace 29.4 mm. wide, dorsal view. 

 After Miers. 



11. Pitho laevigata, male type,c arapace 40 mm. wide, anterior part, ventral 



view. 



12. Same, abdomen. 



13. Same, dorsal view of carapace. 



Figures 11 to 13, after A. Milne Edwards. 



Plate 251 



After Rathbun 



Fig. 1. Pitho aculeata, male (14054), carapace 24.3 mm. wide, dorsal view. 

 2. Pitho anisodon, male (15093), carapace 28.7 mm. wide, dorsal view. 



Plate 252 



After Rathbun 



Fig. 1. Pitho pideti, young female (15822), carapace 8.5 mm. wide, dorsal view. 

 2. Pitho Iherminieri, male (3158), type of Othonia carolinensis, carapace 14 

 mm. wide, dorsal view. 



Plate 253 



After Rathbun 



Fig. 1. Pitho mirabilis, female (15807), carapace 17.5 mm. wide, dorsal view. 



2. Leptopisa setirostris, male (6929), total length of carapace 22 mm., 

 dorsal view. 



Plate 254 



Fig. 1. Anaptychus cornutus, male, holotype, length of carapace 25.4 mm., 

 dorsal view. After Stimpson. 



2. Picroceroides tubularis, male, type, median length of carapace about 16 



mm., dorsal view. 



3. Same, anterior part, ventral view. 



4. Same, chela and carpus. 



5. Same, carapace in profile. 



Figures 2 to 5, after Miers. 



Plate 255 



After Bell 



Fig. 1. Mithrax rostratus, male, type, total length of carapace 56 mm., dorsal 

 view. 



2. Same, abdomen. 



3. Same species, abdomen of female. 



Plate 256 



Mithrax cornutus, male, Martinique, total length of carapace 92 mm. After 



A. Milne Edwards 

 Fig. 1. Dorsal view. 



2. Anterior part, ventral view. 



