86 GaLR ALCYRH YNCHUS PURUSIANUS AND PiPRA C^LESTI-PILE ATA 



que » a species of Galbula, coming' from the Upper Ama- 

 zon and Eastern Ecuador, with the ncw generic name of 

 Galbalcxrbyuchns and the ncw specific name of Icucotis, which 

 stands out in full relief among- the vvhole family on account 

 of its general intense rust colour. It had remained monotype 

 untill this time. When the bird of the River Purús carne 

 to hand, the relationship seemed at íirst sight so striking 

 that the supposition of identity was more than probable. 

 Howewcr the constant absencc of the white patcli just behind 

 the ear indicated by ali authors as especially characteristic 

 in G. leucotis for the adult male, soon led me to abandon 

 this hypothesis and to recognize it as belonging to a second 

 ncw species of this aberrant genus Galbalcyrhynchus. The 

 existence of at least 8 male individuais, without doubt adults, 

 was for me decisive in the matter. I labelled ali the speci- 

 mcns of this bird with the ncw name Galbalcyrbyncbiis piini- 

 siaiiiis nov. spcc. Goeídi ( i()0^). 



As regards the second bird, the Pipra, the question 

 was easier to settle. Only three species of green Pipra ha- 

 ving been described up to the date according to the res- 

 pectivc volume of the Catalogue of the Birds of the Pritish 

 Museum and the ornithological literature at my disposal, it 

 was evident that I had before me a new form of this most 

 interesting minority, a group consisting of some of the most 

 brilliant coloured birds of the present age. The colouring of 

 the male is a dark green on the upper parts and on the 

 chest, a green already approximating black on the throat; 

 the centre of the belly is lemon yellow, shading to green 

 towards the sides. The salient point however in the colou- 

 ring in itself suííicicnt to evidence the novelty of the spe- 

 cies, consists of the brilliant crown-patch. a glittering sky- 

 blue when directly retlecting the light and approaching Ín- 

 digo in diffused light. I labelled ali the specimens of this 

 rcally remarkable Purús-bird Pipra cacJcsH- pile ata nov. spcc. 

 Goeídi (1^04). 



Eaily in 1904 I took steps towards the publication of 

 the two new species of birds coming from the upper Rio 

 Purús. In iSQQ, when in Switzerland officially commissioncd 

 by the State-Govcrnment, I organized a printed list of new 



