TABLE OF CONTENTS. 



Page. 



Family Turdid.e 1 



Key to the American Genera of Turdidif 4 



Genus 1. Saxicola Bechstein 8 



1. Saxicola oenanthe cenanthe (Linnaeus) 9 



2. Saxicola oenanthe leucorhoa ( Vieillot) 12 



Genus 2. Cyanosylvia Brehm 14 



3. Cyanosylvia suecica (Linnpeus) 15 



Genus 3. Catharus Bonaparte 18 



Key to the Species and Subspecies of Catharus 19 



4. Catharus dryas (Gould) 21 



5. Catharus mexicanus mexicanus (Bonaparte) 22 



6. Catharus mexicanus fumosus (Ridgway ) 24 



7. Catharus fuscater hellmayri Berlepsch 24 



8. Catharus occidentalis occidentalis (Selater) 26 



9. Catharus occidentalis fulvescens Nelson 27 



10. Catharus occidentalis olivascens (Nelson) 27 



11. Catharus frantzii frantzii Cabanis 28 



12. Catharus frantzii alticola ( Sal vin and Godman ) 29 



13. Catharus frantzii omiltemensis Ridgway 29 



14. Catharus melpomene melpomene ( Cabanis) 29 



15. Catharus melpomene clarus Jouy 30 



16. Catharus melpomene costaricensis Hellmayr 31 



17. Catharus griseiceps Sal vin 32 



18. Catharus gracilirostris gracilirostris Sal vin 32 



19. Catharus gracilirostris accentor Bangs 33 



Genus 4. Hylocichla Baird 34 



Key to the Species and Subspecies of Hylocichla 35 



20. Hylocichla mustelina (Gmelin) 37 



21. Hylocichla guttata guttata (Pallas) 39 



22. Hylocichla guttata nana ( Audubon) 42 



23. Hylocichla guttata sleveni ( Grinnell ) 44 



24. Hylocichla guttata sequoiensis ( Bekling) 44 



25. Hylocichla guttata auduboni ( Baird ) 46 



26. Hylocichla guttata pallasii ( Cabanis ) 48 



27. Hylocichla ustulata ustulata ( Nuttall ) 52 



28. Hylocichla ustulata swainsonii ( Cabanis) 55 



29. Hylocichla alicije alicite (Baird) - 59 



30. Hylocichla alicipe bicknelli ( Ridgway ) 62 



31. Hylocichla fuscescens fuscescens (Stephens) 64 



32. Hylocichla fuscescens salicicola Ridgway 67 



VII 



