no. 1404. PARASITIC COPEPODS—CALIGID.E— WILSON. 669 



1874b. Smith, S. I. Crustacean Parasites of Fresh-water Fishes. Report of the 

 U.S. Fish Commission for 1872 and 1873, Pt. 2, p. 662. 



1901. Steuhing, T. R. R. On Crustacea brought by Doctor Willey from the South 



Seas. Willey's Zoological Researches, Pt. 5, pp. 605-690, pis. i-xi. 

 1861. Steenstrup, J.., and Lutken, C. Bidrag til Kundskab om det aabne Havs 



Snyltekreba og Lerneer. Kongelige Danske Videnskabernes Selskabs 



Skrifter, 5te Raekke, naturhistorisk og mathematisk Afdeling, V, pp. 343- 



432, pis. i-xv. 

 1762. Stroem, H. Physiske og Oeconomisk Beskrivelske over Fogderiet SondmOr, 



I, Deel, 1762. 

 1895. Thompson, I. C. Revised Report on the Copepoda of Liverpool Bay. Report 



of the Fauna of Liverpool Bay, IV, pp. 81-136, pis. xv-xxxv. 

 L889. Thomson, G. M. Parasitic Copepoda of New Zealand. Transactions of the 



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

 1890. Thomson, G. M. On a New Parasitic Copepod. Transactions of the New 



Zealand Institute, XXI 1 1, pp. 227-229, pi. xxm. 

 1850. White, A. List of the Specimens of British Animals in the Collection of the 



British Museum, Pt, 4, Crustacea, London, 1850, pp. 117-132. 



1902. Wilson, C. B. North American Parasitic Copepods of the Family Argulidee, 



with a Bibliography of the Group and a Systematic Review of all Known 

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 pis. vm-xxvii. 

 1904. Wilson, C. B. A New Species of Argulus, with a more complete Account of 

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 XXVII, pp. 627-655, text figures. 



EXPLANATION OF THE PLATES. 



Plate V. ('align* riifimaculatus, new species. Fig. 51, Dorsal view of female; fig. 52, 

 Dorsal view of male; fig. 53, Dorsal view of a fully developed male 

 chalimus; fig. 54, First maxilla and second antenna of female; fig. 55, 

 First maxilliped of female; fig. 56, Second maxilla of female; fig. 57, 

 Second maxilliped of male; fig. 58, Second maxilliped of female; fig. 

 59, Furca and first maxilla of male; fig. 60, Furca of female; figs. 

 61-64, First, second, third, and fourth swimming legs of female. 



Plate VI. ('nliijits schistonyx, new species. Fig. 65, Dorsal view of male; fig. 66, Dor- 

 sal view o'f female; fig. 67, Second antenna of female; fig. 68, First 

 maxilliped of female; fig. 69, First maxilla of male and female; fig. 

 70, Second maxilliped of female; fig. 71, Second antenna of male; 

 fig. 72, Second maxilla of female; fig. 73, Furca of female; fig. 74, First 

 swimming leg of female; fig. 75, Tip of same enlarged to show the 

 divided claws; figs. 76-78, Second, third, and fourth swimming legs 

 of female. 



Plate VII. Caligus rapax Milne-TSdwards. Fig. 79, Dorsal view of adult female; fig. 

 80, Dorsal view of adult male; fig. 81, Dorsal view of young female, 

 showing fifth legs at the posterior corners of the genital segment; 

 fig. 82, Second antenna of female; lig. 83, Second maxilla; fig. 84, 

 Furca; figs. 85-88, First, second, third, and fourth swimming legs of 

 female; fig. 89, Ventral surface of genital segment, showing the 

 cemenl glands. 



Plate VIII. Caligus muiabilis, new species. Fig. 90, Dorsal view of female; fig. 91, 

 Dorsal view of male; fig. 92, Second antenna; tigs. 93 and 91, First 

 and second maxilla;; fig. 95, Furca; figs. 96 and 97, First and second 

 I'n.e. N. 61 vol. xxviii— 04 43 



