no. 2354. NEW SPECIES OF PARASITIC COPE PODS— WILSON. 1 7 



EXPLANATION OF PLATES. 



Plate 1. 



Lepeophthcirus longipes and Alebion fuscus.— Fig. 1. Dorsal view of im- 

 mature female of L. longipes. Fig. 2. Dorsal view of male. Fig. 3. Second 

 antenna of male. Fig. 4. First maxilla. Fig. 5. Maxillary palp. Fig. 6. 

 Second antenna of Alebion fuscus female. Fig. 7. Second maxilla. Fig. 8. 

 Maxilliped. Figs. 9 to 11. First, second, and third swimming legs. 



Plate 2. 



Alebion fuscus and Elytrophora hemiptera.— Fig. 12. Dorsal view of Alebion 

 fuscus female. Fig. 13. Dorsal view of Elytrophora hemiptera female. Fig. 14. 

 Second antenna. Fig. 15. First maxilla. Fig. 16. Furca. Figs. 17 to 19. First, 

 second, and fourth swimming legs. 



Plate 3. 



Achtheinus dentatus. — Fig. 20. Second antenna of adult female. Fig. 21. 

 Ventral surface of genital, showing partial separation of sixth, segment (sg), 

 sixth legs (sp), abdomen (a), fifth legs (Im), cement glands (eg), and oviducts 

 (od). Fig. 22. Dorsal view of immature female, showing reproductive system. 

 Fig. 23. Maxilliped. Fig. 24. Accessory laminae on maxilliped. Fig. 25. Dorsal 

 view of male. Fig. 26. Mouth tube and maxillae. Fig. 27. Second antenna. 



Plate 4. 



Trebius latifurcatus and Pseudomolgus hatoaiiensis. — Fig. 28. Dorsal view 

 of Trebius latifurcatus female. Figs. 29 to 32. First, second, third, and fourth 

 legs. Fig. 33. Second antenna, maxilla, and maxillary palp. Fig. 34. Furca. 

 Figs. 35 to 3S. First, second, third, and fourth swimming legs of Pseudomolgus 

 Jiawaiiensis female. 



Plate 5. 



Blakeanus corniger and Pseudomolgus hawaiiensis. — Fig. 39. Side view of 

 Blakeanus corniger female. Fig. 40. First antenna. Fig. 41. Second antenna. 

 Fig. 42. Maxilliped. Fig. 43. Fourth swimming legs. Fig. 44. First antenna of 

 Pseudomolgus hawaiiensis male. Fig. 45. First antenna of female. Fig. 46. 

 Second antenna of female. Figs. 47 and 48. Third and fourth swimming legs 

 of male. 



Plate 6. 



Pseudomolgus haivaiiensis. — Fig. 49. Dorsal view of female. Fig. 50. Dor- 

 sal view of male. Fig. 51. Second antenna of male. Fig. 52. First maxilla. 

 Fig. 53. second maxilla. Fig. 54. Maxilliped of male. Fig. 55. Ventral surface 

 of genital segment of male. Fig. 56. Fifth leg of male. Fig. 57. Fifth leg of 

 female. 



Plate 7. 



Modiolicola jamaicensis. — Pig. 58. Dorsal view of female. Fig. 59. First 

 antenna. Fig. 60. Second antenna. Fig. 61. Second maxilla. Fig. 62. Maxil- 

 liped. Figs. 63 to 65. Tbird, fourth, and fifth swimming legs. 



27177— 21— Proc. N. M. vol. 59 2 



