672 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxviii. 



Second maxilla; fig. 279, Furca; fig. 280, Second maxilliped; figs. 

 281-284, First, second, third, and fourth swimming legs; fig. 285, 

 L. bifurcatus, dorsal view of female; fig. 286, Second antenna with 

 accessory spine; fig. 287, First maxilla; fig. 288, Second maxilla; fig. 

 289, Second maxilliped; fig. 290, Furca; figs. 291-293, First, second, 

 and fourth swimming legs, with one of the toothed and ribbed plates 

 at the base of the spines on the fourth legs. 



Plate XXIV. Lepeophtheirus salmonis Kroyer. Fig. 294, Dorsal view of female; fig. 

 295, Dorsal view of male; fig. 296, Second antenna; fig. 297, First 

 maxilla; fig. 298, Furca; fig. 299, Second maxilliped; fig. 300, First 

 maxilliped; figs. 301-303, First, second, and fourth swimming legs. 



Plate XXV. Lepeoptheirus and Anuretes. Fig. 304, L. pacificus Gissler, dorsal view 

 of female; fig. 305, Abdomen of the same after treatment with acetic 

 acid; fig. 306, Second antenna; fig. 307, Second maxilla; fig. 308, 

 Second maxilliped; fig. 309, Mandible; fig. 310, Fourth swimming leg. 

 All the figures after Gissler. Fig. 311, L. cossyphi Kroyer, genital seg- 

 ment and abdomen of female; fig. 312, Fourth swimming leg; fig. 

 313, Third swimming leg. All the figures from Kroyer, and the 

 only ones ever published. Fig. 314, L. robustus Kroyer, first swim- 

 ming leg of male; fig. 315, Furca. Both figures from Kroyer, and the 

 only ones ever published. Fig. 316, Anuretes heckelii Kroyer, ventral 

 view of female; fig. 317, Second antenna; fig. 318, Second maxilla, 

 fig. 319, Second maxilliped; fig. 320, Furca; fig. 321, Fourth swim- 

 ming leg. All the figures from Kroyer. 



Plate XXVI. Caligus teres, new species. Fig. 322, Dorsal view of female; fig. 323, 

 Dorsal view of male; fig. 324, Second antenna and first maxilla; fig. 

 325, Second maxilla; figs. 326, 327, First and second maxillipeds; 

 fig. 328, Furca; figs. 329-332, First, second, third, and fourth 

 swimming legs. 



Plate XXVII. Caligus cenlrodonti Baird. Fig. 333, Dorsal view of female; fig. 334, 

 Dorsal view of male; fig. 335, Second antenna; fig. 336, First max- 

 illa; fig. 337, Second maxilla and mouth tube; fig. 338, Furca; fig. 

 339, Second maxilliped; figs. 340-343, First, second, third, and 

 fourth swimming legs; fig. 344, Genital segment and abdomen of 

 male, ventral view. 



Plate XXVIII. Lepeophtheirus innominatus, new species, and L. chilensis, new species. 

 Fig. 345, L. innominatus, dorsal view of female; fig. 346, Second 

 maxilla; fig. 347, Second antenna; fig. 348, Second maxilliped; figs. 

 349-352, First, second, third, and fourth swimming legs; fig. 353, 

 L. chilensis, dorsal view of female; fig. 354, Dorsal view of male; fig. 

 355, Second antenna; fig. 356, First maxilla; fig. 357, Second max- 

 illa; fig. 358, Furca; fig. 359, Second maxilliped; figs. 360-363, First, 

 second, third, and fourth swimming legs; fig. 364, Dorsal view of 

 genital segment and abdomen of a young female, showing fifth legs. 



Plate XXIX. Homoiotes palliata, new genus and new species. Fig. 365, Dorsal view 

 of female; fig. 366, Dorsal view of male; fig. 367, Second antenna, 

 fig. 369, Mandible; figs. 370, 371, First and second maxillipeds; 

 fig. 372, Furca; figs. 373-376, First, second, third, and fourth swim- 

 ming legs; fig. 377, Dorsal view of genital segment and abdomen of 

 male, showing dorsal plate grown down over the fifth and sixth legs; 

 fig. 378, Dorsal view of genital segment of young female, showing 

 that the dorsal plate is really made up of two plates which start on 

 either side at the base of the segment and afterwards fuse along the 

 mid-line; fig. 379, Ventral view of genital segment of male, showing 

 the fifth and sixth legs : 



