LIST OF ILLUSTRATIONS XI 



31. Cancer borealis, male, Casco Bay, reduced, a. Right chela, b. Left chela. 



After S. L Smith. 



32. Cancer producius, male (2529), dorsal view, reduced. After R. Rathbun. 



33. Cancer antennarius, male, cotype (2033), dorsal view, reduced. After R. 



Rathbun. 



34. Cancer gracilis, male (55355), outer maxilliped, X 3. 



35. Cancer magister, male (2553), California, dorsal view, reduced. After R. 



Rathbun. 



36. Cancer magister, male (15461), outer maxilliped, X 2. 



37. Cancer oregonensis, male (3076), outer maxilliped, X 4. 



38. Paraliofuera dispar, male (24862), abdomen, X 12. 



39. Platypodia spectabilis (25440), male abdomen, carapace 13.2 mm. wide. 



40. Platypodia gemmaia, male, cotype, X 3. a. Dorsal view. b. Wrist and chela. 



41. Actaea bifrons, male. a. Dorsal view, X 3.2. b. Front, X 6.4. 



42. Actaea angusta, female, holotype, carapace 6 mm. wide, dorsal view. 



43. Lipaesthesius leeanus, male, holotype, carapace 11.4 mm. wide. a. Front 



view. b. Dorsal view. 



44. Medaeus lobipes, male, holotype, carapace 25.6 mm. wide, dorsal view. 



45. Medaeus spinulifer, male, holotype, carapace 12.5 mm. wide. a. Major chela. 



b. Minor chela, c. Dorsal view. 



46. Cycloxanthops novemdentatus, male, dorsal view. After Holmes. 



47. Leptodius snodgrassi, male, type, Albemarle Island, X 1.5. a. Chela, b. 



Dorsal view of crab. 



48. Metopocarcinus truncatus, male. Cape San Lucas, carapace 0.18 inch wide, 



dorsal view. After Stimpson. 



49. Lophopanopeus diegensis, male, holotype, carapace 11.4 mm. wide. 



50. Lophopanopeus lobipes, female, Key West (Mus.S.U.L), carapace 5.6mm. wide. 



51. Lophopanopeus maculatus, male, holotype, carapace 9.9 mm. wide. a. 



Abdomen, b. Dorsal view. 



52. Panopeus herbstii, male, major chela, enlarged. After Benedict and Rathbun. 



53. Panopeus herbstii, male abdomen, enlarged. After Benedict and Rathbun. 



54. Panopeus chilensis, male abdomen, enlarged. After Benedict and Rathbun. 



55. Panopeus occidentalis , male abdomen, enlarged. After Benedict and Rath- 



bun. 



56. Panopeus bermudensis, male, enlarged, a. Major chela, b. Abdomen. 



After Benedict and Rathbun. 



57. Neopanope texana, male abdomen, enlarged. After Benedict and Rathbun. 



58. Neopanope texana sayi, male chela, enlarged. After Benedict and Rathbun, 



59. Neopanope packardii, male abdomen, enlarged. After Benedict and Rathbun. 



60. Hexapanopeus angustifrons, male abdomen, enlarged. After Benedict and 



Rathbun. 



61. Hexapanopeus nicaraguensis, male, holotype (Copenhagen Mus.), carapace 



13 mm. wide, dorsal view. 



62. Hexapanopeus quinquedentatus. a. Male, right chela, X 10. b. Female, 



carapace, X 4. 



63. Eurypanopeus abbreviatus, male, enlarged, a. Abdomen, b. Major chela. 



After Benedict and Rathbun. 



64. Eurypanopeus transversus, male abdomen, enlarged. After Benedict and 



Rathbun. 



65. Eurypanopeus depressus, male, enlarged, a. Abdomen, b. Minor chela. 



After Benedict and Rathbun. 



66. Eurypanopeus dissi7mlis, male abdomen, enlarged. After Benedict and 



Rathbun. 



67. Eurypanopeus planus, Bay of Panama, carapace, enlarged. After Benedict 



and Rathbun. 



