12. IRID0ENI8. 139 



fi. TANAGRIN^ FORTIROSTEES. 



As Tanagrlnce fortirostres I propose to arrange the various genera, 

 allied to typical Tanagra, with stronger bills than in the last sec- 

 tion, and a generally well-marked tooth in the upper mandible. 

 They embrace altogether 57 species, divided into 12 genera. In 

 the first part of the series blue is the prevailing colour, only varied 

 with j-ellow. In MhampJiocoelns this is replaced by bright scarlets 

 and marroous. These birds are spread over the whole Tanagrine 

 area of the Neotropical Region. 



Keif to the Genera. 



A. Bill short, much compressed : 



(very short; terminal notch distinct 12. Iridorxis, p. 1.39. 



) longer; terminal tooth less distinct 13. Delothraupis, p. 142. 



B. Bill short, much widened at the base ; 



head crested 14. Stephanophorus, 



C. Bill longer, slightly widened at the [p. 143. 



base. 

 «. Gonys nearly straight. 

 a'. Bill broader at base : 



J bill thinner; size small 15. Pcecilothratipis, p. 144. 



t bill thicker ; size large 10. Buthraupis, p. 147. 



b'. Bill more constricted : 



("terminal notch obsolete .... 17. Cojipsocoma, p. 150. 



\ terminal notch distinct 18. Dubusia, p. 152. 



b. Gonys slightly ascending: 



r upper mandible slightly swollen 19. Ta:^agra, p. 15.3. 

 \ upper mandible much swollen. . 20. Spindaxis, p. 165. 



D. Bill longer, much widened at the base. 



c'. Lower mandible naked at base . . 21. Rhamphoccelus, p. 169. 

 d'. Lower mandible feathered : 



f tail longer 22. Phlogothraupis, p. 178. 



X tail shorter 23. Caloch^tes, p. 179. 



12. IRIDORNIS. 



Type. 



Iridosornis, Zessoti, Echo d. M. S. 1844, p. 80 I. dubusia. 



Poecilornis, Hartl. Rev. Zool. 1844, p. 369 I. dubusia. 



Euthraupis, Cab. Mus. Hein. i. p. 30 (1850) I. dubusia. 



This brilliant little group contains five species, inhabitants of the 

 remote Andean valleys of Colombia, Ecuador, and Peru, and re- 

 markable for their short stout bill, which bears a well-marked 

 terminal notch. Their structure is otherwise typical. 



Keij to the Sjpecies. 



A. Tliroat black ; nuchal spot yellow, 

 rt. Belly black : 



1 middle of cap orange ; front black .. 1. dubusia, ^.l-iO. 

 i cap black; large nuchal spot yellow . 2. reinkardti, p. 140, 

 b. Belly chestnut 3. jelskii, p. 141. 



