THE CANCROID CRABS OF AMERICA 569 



Plate 47 



'Callinectes sapidus, male (61058), carapace 138 mm. wide, dorsal view 



Plate 48 



Callinedes sapidus acutidens, male, type in M.C.Z., dorsal view 



Plate 49 



Callinectes bellicosus, male, dorsal view 



Plate 50 



Callinectes ornatus, cotype. Cat. No. 5137, M.C.Z., dorsal view 



Plate 51 



Callinectes danae, male, cotype, Pernambuco, Cat. No. 5143, M.C.Z., dorsal view 



Plate 52 



Callinectes arcuatns, male, cotype, Cape St. Lucas, Cat. No. 16833, U.S.N.M., 



dorsal view 



Plate 53 



Callinectes marginatus, male, cotype of C. larvatus, Bahamas, Cat. No. 5152, 



M.C.Z., dorsal view 



Plate 54 



Callinectes toxotes, male, cotype, Cape St. Lucas, Cat. No. 5183, M.C.Z., dorsal 



view 



Plate 55 



Callinectes bocourti, male, dorsal view. After M. J. Rathbun 



Plate 56 



Callinectes exasperatus, cotype of C. iumidus, Gonaives, Haiti, Cat. No. 5162, 



M.C.Z., dorsal view 



Plate 57 



After A. Milne Edwards 



Lupella forceps, Haiti, male, carapace 67 mm. wide 



-Figure 1. Dorsal view. 



2. Antennal regions, enlarged. 



3. Facial region, showing outer maxillipeds advanced as far as front. 



4. Sternal plastron, after removal of abdomen, showing median suture. 



5. Abdomen 



Lupella forceps, female. 



6. Chela, inner view. 



7. Same, outer view. 



