XVI 



LIST OF FIGURES ILLUSTRATING GENERIC TABLES. 



Genus. 



48. Himantopus Brisson 



49. Rynchops Linnaeus 



50. Hydroprogne Kaup 



51. Thalasseus Boie 



52. Oelochelidon Brehm 



53. Sterna Linnaeus 



54. Sternula Boie 



55. Hydroctielidon Boie 



56. Pliaetusa Wagler 



57. Anous Stephens 



58. Megalopterus Boie 



59. Gygis Vr'agler 



60. Rissa Stephens 



61. Pagophila Kaup 



62. Larus Linnaeus 



63. Blasipus Bruch 



64. HydrocolcEus Kaup 



65. Creagrus Bonaparte 



66. Xema Leach 



67. Rhodostethia Macgillivray. 



68. Megalestris Bonaparte 



69. Coprotheres Reichenbach. . 



70. Stercorarius Brisson 



71. Plautus Gimuerus 



72. Pinguinus Bonnatene 



73. Alea Linnaeus 



74. Uria Brisson 



75. Cepphus Pallas 



76. Brachyramphus Brandt. . . 



77. Endomyehura Oberholser. . 



78. Synthhboramphus Brandt. 



79. Ptychoramphus Brandt. .. 



80. Phaleris TemmLnck 



81. Ciceronia Reichenbach 



82. Aleclla Stone 



83. ^thia Merrem 



84. GerorliLnca Bonaparte 



"^5. Fratercula Brisson 



80. LuDda Pallas 



Plate. 



XXI 



XXI 



XXII 



XXIII 



XX 



XXV 



XXII 



XXIII 



XXIV 



XXVI 



XXVI 



XXIV 



XXVII 



XXVII 



XXVII 



XXVIII 



XXVIII 



XXVIII 



XXVIII 



XXVIII 



XXIX 



XXIX 



XXX 



XXX 



XXXI 



XXXI 



XXX 



XXX 



XXXII 



XXXII 



XXXII 



XXXII 



XXXII 



XXXIII 



XXXIII 



XXXIII 



XXXIII 



XXXIV 



XXXIV 



Figure. 



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2 



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2 



2 



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2 

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