(287 ) 



Ti/pe locality : Ournmee, British Guiana. 

 Specimens examined : 



Wing. Tail. Bill. 



1. Mns. Brit. <? ad., Ourumee, Oct. 31, 1890. 



T//pf of species 63 35 12| mm. 



2. Mns. Brit. S ad,, Ournmee, Oct. 9, 1890 



3. Mns. Brit. ? ad., Onrnraee, Oct. 31, 1890 



4. Mns. Tring. ¥ ad., Ourumee, Sept. 29, 1890 . 

 5-9. Mns. Tring. d <S ad., Surinam 



10. Mns. Tring. <? imm., Surinam 



11, 12. Mus. Tring. ¥ ¥ ad., Surinam . 

 13-16. Mns. Tring. d d imm., (.lanra Valle.v, Venez, 



17. Mns. Monac. S ad., Caura Valley, Venez. 



18. Mus. Vindob. <S ad., Serra Caranmau, Rio 



Branco, June 7, 1832 65 34i 12 „ 



Adult. Top of the head lighter than in P. s. senex, slate-grey, sides of the head 

 also averaging paler grey. Males with a large white coronal patch, females without 

 or with very little white. Back clear rufescent or russet-brown. 



Obs. Nos. 1, 3, and 4 have the abdomen distinctly paler, sulphur-yellow, than 

 the rest of the belly, which is bright ochraceous, while in a series from Venezuela 

 and in the bird from the Rio Branco all the under surface (e.Kcept the white throat) 

 is uniform deep ochraceous (like P. s. senex). As, however. No. 2 (Ournmee) and 

 the examples from Surinam agree with the Venezuelan ones, this slight difference 

 must be purely individual. Notwithstanding our former affirmation {Bull. B. 0. C. 

 xii. p. 64), Natterer's male from the Rio Branco undoubtedly belongs to P. s. 

 qriseiceps ; it is perfectly identical with some of the Caura specimens. 



The colour of the back is rather variable in my series. Some examples {e.g. 

 Nos. 1, 3, etc.) are indeed lighter than P. s. senex, but others (Nos. 4, 13-15) 

 match them exactly, and No. 17 (Caura) is even darker and more rufescent brown. 



((") Platt/rinchus senex nattereri Hart. & Hellm. 



Ilab. Central Brazil, Rio Madeira, east bank : Salto do Girao (Natterer), 

 Calama (Hoffmanns), Marnins on the Rio Machados (Hoffmanns). 



Type locality : Salto do Girao. 



Specimen.'^ examined : vide supra. 



Adult. Similar to P. s. griseiceps in having the head slate-grey, but differing 

 by the much paler, greenish olive-brown colour of the back. 



91. Platyrinchus coronatus coronatus Scl. 



Plalyrhynchus coronalus Sclater, Pruc. Zool. Soc. Loml. xxvi. 18,08. p. 71 (1858.— Rio Napo, Eastern 



Ecuador). 

 P. e. coroiiatUK Hellmayr, Noi'. Zuol. xiv. 1907. p. 354 (Humaytha, Paraiso). 



Nos. 40, 161, 3(J4, 456. cJJad., Calama, 15. vi., 3, 30. vii., 26. viii. 1907. 

 "Iris brown, feet grey, bill black, below grey." — Wing 55 — 58i ; tail 25 — 28 ; bill 

 12 mm. 



No. 5. ¥ ad., Calama, 8. vi. 1907. Soft parts as above. — Wing 54 ; tail 24; 

 bill lU mm. 



Nos. 898, 924. cJ<Jad., Maruins, 2, 12. vi. 1908.— Wing 54, 68 ; tail 25, 27 ; 

 bill 11 J mm. 



No. 891. d imm., Marnins, 31. v. 1908.- Wing 04 ; tail 24 ; bill 11 mm. 



