( 354 ) 



29. Cacicus haeruorrhous haemorrhous (Linn.)? 

 Cf. Nov. Zool. xii. L905. p. 279. 



One & ml., Bumaytba, 25. ix. 06. "Iris pale blue, feet black, bill pale green." — 

 Wing 209, tail 125, bill 40 mm. 



This specimen agrees in the glossy black coloration of the plumage with 

 C. h.haemorrkoua of Cayenne, Surinam, British Guiana, Para, etc., but is very much 

 larger, and has a stronger, more powerful bill. In our huge series of the typical 

 form the wing varies from 170 to 190 mm. 



The birds from the Rio Madeira most likely represent a distinct form. 



30. Lanipropsar tanagrinus tanagrinus (Spix). 



Cf. supra, p. 46. 



Lampropsar tanagrinus Pelzeln, Zur Ornith. Jims. iii. 1869. p. 200 (part. Borba). 



No. 074. ? ad., Eumaytha, 22. vii. 06. " Iris brown, feet and bill black."— 



Wing '.14, tail 86, bill 18 mm. 



No. 11528. ? ad., Borba, 13. xi. 06. "Iris, feet, and bill black."— Wing 100, 

 tail 95, bill 17 mm. 



The Humaytha bird agrees perfectly with our ? from Tefte. The specimen 

 from Borba is rather more glossy ou the pileum and, in this respect, approaches 

 L. t. guianensis Cab., from which, however, it differs by the nnder-surface being 

 duller and mure of a greenish sheen. 



31. *Platyrhynchus coronatus coronatus Scl. 



Platyrhynchui coronatus Sclater, P.Z.S. 1858. p. 71 (Rio Napo, Eastern Ecuador). 



Nos. 1057, 1058, 1086. cTcT ad., Humaytha, 7, 14. viii. 06. " Iris dark brown, 

 feet grey-brown, bill black." 



No. 1059. ? ad., Humaytha, 7. viii. 06. " Iris dark brown, feet grey-brown, 

 bill black, below grey." 



Nos. 1307, 1308. ?, cf juv., Paraizo, 15. x. 06. "Iris black, feet grey, 

 bill black." 



In coloration these birds agree perfectly with the type and several other 

 specimens from Eastern Ecuador in the British Museum, but have rather shorter 

 tails. Skins from British Guiana (Ournmee, Bartica Grove), Oyapoc in French 

 Guiana (Verdey) and Albina, Surinam (C. Bartlett) are practically identical with 

 those from the Hio Madeira, though they were referred to /'. c. superciliaris 

 by Mr. Sclater.f 



The latter form, of which I have examined a very large series from Costa Rica, 

 Chiriqui, Panama, and North-west Ecuador, differs from /'. c. coronatus as here 

 understood by having the back bright olive-green (instead of dull greyish or 

 brownish green), the under-parts sulphur-yellow (instead of straw or maize-yellow — 

 Ridgw. vi. 17, 21) and the chest washed with greenish (not with buffy brown). 

 I am unable to find any constant differences between Central American specimens 

 and those from North-west Ecuador. 



The six examples from Humaytha present some variation as to the intensity 

 of the colour of the nnder-surface, one adult male (No. 1057) being much brighter, 



t Cat. Birdt Brit. Mils. xiv. p. 68. 



