GEOLOGY AND PALEONTOLOGY OF THE CANAL ZONE. 181 



FIG. 4, 5. Panopeus antepurpureus, paratypes, dactyli of right chelipeds, X 3J. 

 6. Panopeus antepurpureus, paratype, immovable finger of right cheliped, 



X 3J. 

 7-11. Panopeus antepurpureus, paratypes, dactyli of left chelipeds, X 3A. 



12. Panopeus tridentatus Rathbun, paratype, dactylus of right cheliped, X 3i. 



13. Panopeus tridentatus, paratype, propodal finger of right cheliped, X 3. 



14. Panopeus tridentatus, holotype, dactylus of right cheliped, outer view, 



X 3i. 



15. Upper edge of same, X 8. 



16. Fragment of Gatunla proavita ff, Cat. No. 324286, showing lobe in profile, 



X 2. 



17. Flat surface of same, X 2. 



18. Callianassa hilli Rathbun. paratype b, sixth segment of pleon, X 2. 



19. Callianassa hilli, holotype, merus and carpus of right cheliped, X 2. 



20. Callianassa hilli, paratype a, right cheliped, X 2. 



21. Mursia macdonaldi Rathbun, holotype, left palm, X 2. 



22. Carpilins, species, Cat. No. 324243, piece of propodus of a left ambulatory 



leg, X 2. 



PLATE 59. 



FIG. 1. Callianassa ovalis Rathbun, holotype, left cheliped, X 2. 



2. Callianassa ovalis, paratype a, propodus of left cheliped, X 2. 



3. Impression of figure 1, X 2. 



4. Callianassa ovalis, paratype b, carpus of left cheliped, X 2. 



5. Callianassa, species, Cat. No. 324277, manus of left cheliped, X 3i. 



6. Callianassa lacunosa Rathbun, holotype, left manus. distal view, X 3. 



7. Outer view of same, X 3. 



8. Inner view of same, X 3. 



9. Callianassa lacunosa, paratype, left manus, inner view, X 3. 



10. Outer view of same, X 3. 



11. Distal view of same, X 3. 



PLATE 60. 



FIG. 1. Callianassa moinensis Rathbun, holotype, propodus of right cheliped, 

 lower view. X 3. 



2. Upper view of same, X 3. 



3. Outer view of same, X 3. 



4. Callianassa elongata Rathbun, holotype, propodus of left cheliped, upper 



view, X 2. 



5. Outer view of same, X 2. 



6. Lower view of same, X 2. 



7. Leucosiidae?. indeterminable, Cat. No. 324136, dactylus of left chela, 



outer view, X 3$. 



8. Upper view of same, X 3*. 



9. Callianassa, scotti Brown and Pilsbry, holotype, left manus, lower view, 



X 1*. 



10. Callianassa scotti, paratype, Cat. No. 2259, left propodus, upper view, 



X 1}. 



11. Outer view of same, X 1$. 



12. Callianassa scotti, Cat. No. 324279, left rnanus, distal view, X 1$. 



13. Callianassa tenuis Rathbun, holotype, left manus, inner view, X 3. 



14. Outer view of same, X 3. 



