248 ' MR. E. J. MIERS ON THE OXYSTOMATOUS CRUSTACEA. 



DESCRIPTION Or THE PLATES. 



Plate XXXVIII. 



Illustrations of Species of the Eamily Leucosiidae. 



Fig. 1 . Leucosia fuscomaculata, sp. n., male : natural size. 



Pig. 2. The same : lateral view of its thoracic sinus, enlarged. 



Fig. 3. The same : outline of the abdomen, natural size. 



Fig. 4. L. pulcherrima, sp. n., female : natural size. 



Fig. 5. The same : lateral view of its thoracic sinus, enlarged. 



Fig. 6. The same : outline of the abdomen, natural size. 



Fig. 7. L. ornata, sp. n., female : natural size. 



Fig. 8. The same : a lateral view of its thoracic sinus, enlarged. 



Fig. 9. The same : outline of the abdomen, natural size. 



Fig. 10. L. brunnea, sp. n., female : natural size. 



Fig. 11. The same: inferior view, showing angular sinus, enlarged. 



Fig. 12. The same : outline of the abdomen, natural size. 



Fig. 13. L. reticulata, sp. n., male : natural size. 



Fig. 14. The same : lateral view of its thoracic sinus, enlarged. 



Fig. 15. The same : outline of the abdomen, natural size. 



Fig. 16. L. whitmeei, Miers, male : natural size. 



Fig. 17. The same : lateral view of its thoracic sinus, enlarged. 



Fig. 18. The same : outline of the abdomen, natural size. 



Fig. 19. L. perryi, sp. n., male : natural size. 



Fig. 20. The same : lateral view, showing absence of thoracic sinus, enlarged. 



Fig. 21. The same : outline of the abdomen, natural size. 



Fig. 22. L. pubescens, male : natural size. 



Fig. 23. The same : lateral view of thoracic sinus, enlarged. 



Fig. 24. The same : outline of the abdomen, natural size. 



Fig. 25. Myra mammillaris, Bell, young male : natural size. 



Fig. 26. The same : lateral view, enlarged. 



Fig. 27. The same : outline of the abdomen, natural size. 



Fig. 28. Nursia plicata, Herbst, male : natural size. 



Fig. 29. Arcania granulosa, male : enlarged. 



Fig. 30. Cryptocnemus holds worthi, female : enlarged. 



Fig. 31. The same: outline of its abdomen, enlarged. 



Fig. 32. The same : arm of female specimen, greatly enlarged. 



Plate XXXIX. 



Illustrations of Species of the Genus Ifatuta. 



Fig. 1. Matuta victrix, Fabr., male: natural size. 

 Fig. 2. The same, hand of male : natural size. 

 Fig. 3. The same, hand of female : natural size. 



