NO. 1504. AMERICAN PARASITIC COPEPODS— WILSON. 719 



1888. Thompson, I. C. Second Report on the Copepoda of Liverpool Bay. Pro- 



ceedings, Biological Society of Liverpool, II, p. 63. 



1889. Thomson, G. M. Parasitic Copepoda of New Zealand. Transactions of the 



. New Zealand Institute, XXII, p. 354, pis. xxv-xxix. 

 1892. Beneden, p. J. van. Quelques nouveaux Caligidesde la Cote d'Afrique, et de 

 I'Archipel des Azores. Bulletins de I'Academie Royale des Sciences, des 

 Lettres et dee Beaux-arts de Belgiqne (3), XXIV, pp. 241-262, pis. i-iv. 



1898. Bassett-Smith, P. W. Some New or Rare parasitic Copepods found on Fish 



in the Indo-tropic Region. Annals and Magazine of Natural History, 1898, 

 7th ser., II, pp. 357-372, pis. x-xii. 



1899. Bassett-Smith, P. W. A Systematic Description of Parasitic Copepoda found 



on Fishes, with an Enumeration of the known Species. Proceedings of the 

 Zoological Society of London, 1899, pp. 438-507, pi. xxvi. 



1900. Scott, T. Notes on some Crustacean Parasites of Fishes. Eighteenth Annual 



Report of the Fishery Board for Scotland, pt. 3, pp. 288-.303, pis. xii and 



XIII. 



1905. Wilson, C. B. New species of Parasitic Copepods from the Massachusetts 



Coast. Proceedings of the Biological Society of Washington, XVII, 

 pp. 127-132. 



1906. Wilson, C. B. Some Parasitic Copepods collected by Prof. \V. A. Herdman 



at Ceylon in 1902. Report to the Government of Ceylon on the Pearl Oyster 

 Fisheries of the Gulf of Manaar. Supplementary Report No. xxxiv, 

 pp. 189-210, pis. i-v. 



EXPLANATION OF THE PLATES. 

 Plate XV. — 7Vc/>/«.« f.r///s, Wilson, and T. teindfurcatus Rathbun. 



Fig. 1. Trebius e.vilis, dorsal view of female. 



2. Dorsal view of male. 



3. Second antenna and first maxilla of female. 



4. Second antenna of male. 



5. Mouth tube and second maxilla. 



6. Furca. 



7. Fourth swimming leg. 



8. Trebius tenulfurcatus, dorsal view of female. 



9. Second antenna and first maxilla. 



10. Furca. 



11. Second antenna and first maxilla of Trebius raiuhitus Kroyer. 



12. Mouth tube and second maxilla of same. 



13. Furca. 



Plate XVI. — Trebius caudatus Kroyer. 



Fig. 14. Dorsal view of female. 



15. Dorsal view of male. 



16. First maxilliped. 



17. Second maxilliped. 



18-21. First, second, third, and fourth swimming legs. 

 22. Ventral view of genital segment of female. 



