XII TABLE OF CONTENTS. 



Page. 



Genus 10. Cyanolyca Oabanis 318 



Key to the Species and Subspecies of Oyanolyca« 319 



40. Cyanolyca argentigula Lawrence - ^19 



41. Cyanolyca mirabilis Nelson - '^48 



42. Cyanolyca nana (Du Bus) 320 



43. Cyanolyca pumilo (Strickland) - - 321 



44. Cyanolyca mitrata Eidgway - - 322 



45. Cyanolyca cucullata Ridgway - 323 



Genus 11. Aphelocoma Oabanis — 323 



Key to the Species and Subspecies of Aphelocoma >> 324 



46. Aphelocoma cyanea ( Vieillot) 326 



47. Aphelocoma californica calif ornica (Vigors) 327 



48. Aphelocoma californica obscura Anthony 330 



49. Aphelocoma californica hypoleuca Ridgway 331 



50. Aphelocoma insularis Henshaw 331 



51. Aphelocoma woodhouseii (Baird) 333 



52. Aphelocoma cyanotis Ridgway 335 



53. Aphelocoma sumichrasti Ridgway - 336 



54. Aphelocoma texana Ridgway 337 



55. Aphelocoma grisea Nelson 337 



56. Aphelocoma sieberii sieberii ( Wagler) 338 



57. Aphelocoma sieberii colimfe Nelson 339 



58. Aphelocoma sieberii potosina Nelson 340 



59. Aphelocoma sieberii arizonae (Ridgway) 340 



60. Aphelocoma sieberii wollweberi (Kaup) 341 



61. Aphelocoma sieberii couchi (Baird) 342 



62. (?) Aphelocoma ultramarina (Bonaparte) 343 



63. Aphelocoma unicolor unicolor (Du Bus) 344 



64. Aphelocoma unicolor coelestis, new subspecies 345 



65. Aphelocoma guerrerensis Nelson 749 



Genus 12. Cyanocitta Strickland 345 



Key to the Species and Subspecies of Cyanocitta 346 



66. Cyanocitta cristata cristata (Linnseus) 347 



67. Cyanocitta cristata florincola Coues 350 



68. Cyanocitta stelleri stelleri (Gmelin) 351 



69. Cyanocitta stelleri carlottse Osgood 354 



70. Cyanocitta stelleri carbonacea Grinnell 354 



71. Cyanocitta stelleri^ frontalis Ridgway 355 



72. Cyanocitta stelleri annectens Baird 357 



73. Cyanocitta stelleri diademata (Bonaparte) 358 



74. Cyanocitta stelleri azteca Ridgway 361 



75. Cyanocitta stelleri coronata (Swainson) 362 



Genus 13. Perisoreus Bonaparte 364 



Key to the Species and Subspecies of Perisoreus 365 



76. Perisoreus canadensis canadensis (Linnseus) 366 



77. Perisoreus canadensis nigricapillus Ridgway 368 



78. Perisoreus canadensis f umif rons Ridgway 369 



79. Perisoreus canadensis capitalis Baird 370 



80. Perisoreus obscurus obscurus (Ridgway) 372 



81. Perisoreus obscurus griseus Ridgway 373 



Family Parid^. The Titmice 375 



aSee Addenda, pp. 747, 748. iiSee Addenda, p. 749. 



