CONTENTS. XXV 



236. Melozone cabanisi (Sclater aud Salvin) 441 



237. Melozone biarcuatuin (Prevost) 443 



238. Melozone leucotis Cabanis 444 



239. Melozone occipitalis Cabanis 445 



Genus 36. Arremonops Ridgway 445 



Key to the Species and Subspecies of Arremonops 446 



240. Arremonops rufivirgatus rufivirgatus (Lawrence) 474 



241. Arremonops rufivirgatus crassirostris Ridgway 448 



242. Arremonops superciliosus superciliosus (Salvin ) 449 



243. Arremonops superciliosus sumichrasti (Sharpe ) 450 



244. Arremonops superciliosus sinaloiK Nelson 450 



245. Arremonops verticalis Ridgway 451 



246. Arremonops chloronotus (Salvin) 452 



247. Arremonops conirostris conirostris (Bonaparte) 453 



248. Arremonops conirostris richmondi Ridgway 453 



Genus 37. Arremon Vieillot 454 



249. Arremon aurantiirostris Lafresnaye 455 



Genus 38. Lysurus Ridgway 457 



Key to the Species of Lysurus 458 



250. Lysurus crassirostris ( Cassin) 158 



Genus 39. Atlapetes Wagler 459 



Key to the Species and Subspecies of Atlapetes 460 



251. Atlapetes pileatus pileatus Wagler 460 



252. Atlapetes pileatus dilutus Ridgway 461 



253. Atlapetes gutturalis (Lafresnaye) 461 



254. Atlapetes albinucha (D'Orbigny and Lafresnaye) 463 



Genus 40. Buarremon Bonaparte 464 



Key to the Species of Buarremon 465 



255. Buarremon briunneinuchu.s ( Lafresnaye) 465 



256. Buarremon virenticeps Bonaparte 467 



257. Buarremon assimilis ( B< lissoneau) 468 



Genus 41. Psellioijhorus Ridgway 469 



258. Pselliophorus tibialis ( Lawrence ) 470 



Genus 42. Pezopetes Cabanis 471 



259. Pezopetes capitalis Cabanis ^ 472 



Genus 43. Platyspiza Ridgway 473 



260. Platyspiza crassirostris ( (touUI ) 474 



Genus 44. Camarhynchus Gould 476 



Key to the Species of Camarhynchus 476 



261 . Camarhynchus psittaculus Gould - - - 477 



262. Camarhynchus habeli Sclater and- Salvin 480 



263. Camarhynchus affinis Ridgway 481 



264. Camarhynchus compressirostris Ridgway 481 



265. Camarhynchus incertus Ridgwa}' 482 



266. Camarhynchus pauper Ridgway 483 



267. Camarhynchus prosthemelas Sclater and Salvin 484 



268. Camarhynchus salvini Ridgway 486 



269. Camarhynchus pallid us (Sclater and Salvin) 487 



Genus 45. Geospiza Gould 489 



Key to the Species of Geospiza 493 



270. Geospiza magnirostris Gould 495 



271. Geospiza strenua Gould 496 



272. Geospiza pachyrhyncha Ridgway 498 



273. Geospiza conirostris Ridgway 498 



