ILLUSTRATIONS 



Figures 



Page 



1. Diagram of dorsal view of an oxystomatous crab, showing terms 



used in description 2 



2. Diagram of ventral view of an oxystomatous crab, showing terms 



used in description 3 



3. Carapace and right cheliped of Raninoides loevis 9 



4. Raninoides benedidi, male holotype 11 



5. Carapace and right cheliped of Raninoides benedidi 11 



6. Raninoides louisianensis, male holotj'^pe 12 



7. Carapace and right cheliped of Raninoides louisianensis 13 



8. Carapace and right cheliped of Raninoides lamarcki 13 



9. Carapace and right cheliped of Ranilia angustata, male 19 



10. Symethis variolosa 26 



11. Outline of carapace and eyes of Dromia erythropus, male 31 



12. Outline of carapace of Dromidia antillensis, male 33 



13. Outline of carapace of Dromidia larraburei, female holotype 35 



14. Hypoconcha spinosissirna, female holotype 46 



15. Abdomen of Dicranodromia ovaia, male 60 



16. Thelxiope barbala, male 65 



17. Homologenus rostratus 71 



18. Latreillia elegans, female 74 



19. Antennal and oral region of Ethusa lata, female 84 



20. Anterior part and abdomen of Ethusa ciliatifrons, male 88 



21. Ethusina abyssicola, male 91 



22. Ethusina smithiana 93 



23. Outline of carapace of Cymonomus quadratus, male 98 



24. Outline of carapace of Cydodorippe antennaria, male 104 



25. Outline of carapace of Cydodorippe agassizii, male 105 



26. Clythrocerus nitidus, female 110 



27. Clythrocerus nitidus, male 110 



28. Clythrocerus perpusill us, female 111 



29. Clythrocerus planus, male 114 



30. Carapace of Clythrocerus decorus, male 118 



31. Clythrocerus granulatus, female holotype 120 



32. Outline of carapace of Clythrocerus stimpsoni, female holotj'pe 121 



33. Ebalia stimpsonii, female 125 



34. Ebalia magdalenensis, female holotype 129 



35. Ebalia cristata, male holotype 134 



36. Carapace, left cheliped, and first and last right ambulatory of Lith- 



adia granulosa 141 



37. Carapace of Persephona finneganae, male type 161 



38. Carapace of Randallia bulligera, male 176 



39. Carapa ce of Randallia laevis, male holotype 177 



40. Randallia agariclas, male holotype 178 



41. Iliacantha liodadylus, male 187 



42. Outline of carapace of Iliacantha schmitti 192 



V 



