TABLE OF CONTENTS. XI 



Page. 



Key to the Speciea and Subspecies of (Encenas 324 



17. (Encenas subvinacea subvinacea (Lawrence) 326 



18. (Encenas nigrirostris (Sclater) '. 328 



19. (Encenas purpureotincta (Ridgway) 331 



20. (Encenas chiriquensis Ridgway 332 



Genus 6. Ectopistes Swainson 333 



21. Ectopistes migratorius (Linnaeus) 334 



Genus 7. Zenaidura Bonaparte 339 



Key to the Species and Subspecies of Zenaidura 340 



22. Zenaidura macroura macroura (Linnseus) 341 



23. Zenaidura macroura clarionensis (Townsend) 344 



24. Zenaidura macroura carolinensis (Linnseus) 345 



25. Zenaidura macroura marginella (Woodhouse) 347 



26. Zenaidura macroura tresmariae Ridgway 351 



27. Zenaidura graysoni Lawrence 352 



28. Zenaidura yucatanensis Lawrence 353 



Genus 8. Zenaida Bonaparte 354 



Key to the Species and Subspecies of Zenaida 355 



29. Zenaida zenaida zenaida (Bonaparte) 357 



30. Zenaida zenaida lucida Noble 361 



31. Zenaida zenaida yucatanensis (Salvadori) 362 



32. Zenaida spadicea Cory 362 



33. Zenaida aurita (Temminck and Knip) 363 



34. Zenaida (?) plumbea Gosse 366 



35. Zenaida auriculata (Des Murs) 366 



36. Zenaida ruficauda vinaceo-rufa (Ridgway) 370 



Genus 9. Nesopelia Sundevall 372 



37. Nesopelia galapagoensis galapagoensis (Gould) 373 



38. Nesopelia galapagoensis exsul Rothschild and Hartert 375 



Genus 10. Melopelia Bonaparte 376 



Key to the Species and Subspecies of Melopelia 377 



39. Melopelia asiatica asiatica (Linnaeus) 378 



40. Melopelia asiatica mearnsi Ridgway 382 



Genus 11. Streptopelia Bonaparte 385 



41. Streptopelia risoria (Linnaeus) 386 



Genus 12. Scardafella Bonaparte 388 



Key to the Species and Subspecies of Scardafella 389 



42. Scardafella inca (Lesson) 390 



Genus 13. Chsemepelia Swainson 393 



Key to the Species and Subspecies of Chsemepelia 395 



43. Chsemepelia passerina passerina (Linnaeus) 398 



44. Chsemepelia passerina pallescens Baird 402 



45. Chsemepelia passerina socorroensis (Ridgway) 406 



46. Chsemepelia passerina neglecta Carriker 407 



47. ChBemepelia passerina albivitta (Bonaparte) 408 



48. Chsemepelia passerina antillarum (Lowe) 411 



49. Chsemepelia passerina trochila (Bonaparte) 412 



50. Chsemepelia passerina aflavida (Palmer and Riley) 415 



51. Chsemepelia passerina insularis (Ridgway) 417 



52. Chsemepelia passerina bahamensis (Maynard) 418 



53. Chsemepelia passerina exigua (Riley) •- . 420 



54. Chsemepelia passerina jamaicensis (Maynard) 421 



55. Chaemepelia minuta elseodes Todd 422 



