POLYEEATA.— CHETSIJEONIA. 311 



2. Polyerata decora. 



Damophila amabilis, Salv. P. Z. S. 1870, p. 211 \ 



Polyerata decora, Salv. Ann. & Mag. N. H. 1891, vii. p. 377"; Cat. Birds Brit. Mus. xvi. p. 238'. 



P. amdbUi affinis, sed rostro longiore ; plumis micantibus capitis snpra nucham magis extensis ; tectricibus 

 supracaudalibns et rectricibus intermediis saturate nitenti-viridib,U8 purpureo vix tinctis. Long, rostri a 

 rictu 1-1. 



2 quoque rostro longiore, nropygio et Cauda magis viridescentibus differt. (Descr. maris et feminse exerapL 

 typ. ex Chiriqui, Panama. Mus. nostr.) 



Edb. Panama, Volcan de Chiriqui, Bugaba [Arce ^). 



After considerable hesitation, Salvin described this species in the ' Catalogue of Birds 

 in the British Museum ' ^, having previously noted some of the differences which distin- 

 guish it from P. amabilis ^. 



This form seems to be strictly confined to the district of Chiriqui, and is probably 

 found there only on the Pacific side of the mountains. 



e". Cauda regulanter rotundata, rectricibus latis aut aureo-cupreis micantibus, 



aut chalybeis aut castaneis. 

 e'". Cauda loete aureo-cuprea ; stria elongata postoculari nulla. 



CHEYSUEONIA. 



Chrysuronia, Bonaparte, Consp. At. i. p. 75 ; Salv. Cat. Birds Brit. Mus. xvi. p. 248. 



In Chrysuronia the tail is rounded, the feathers being broad, and in this respect it 

 resembles the next genus, Basilinna ; but in all the members of Chrysuronia the tail is 

 of bright glittering colour ; moreover, there is no long postocular white stripe, which is 

 a very marked feature in Basilinna. 



The number of species in Chrysuronia is five, which are distributed over nearly the 

 whole of Tropical America as far south as the Argentine Republic ; no species, however, 

 occurs in Eastern Brazil. In Central America one species, C. elicice, is found, which is 

 peculiar to that country, 



1. Chrysnronia eliciae. 



Trochilus elicia, Bourc. & Muls. Ann. Sc. Phys. et Nat. Lyon, ix. p. 314'. 



Chrysuronia elides, Gould, Mon. Troch. v. t. 328 (Sept. 1858)^; Scl. & Salv. Ibis, 1859, p. 130'; 



Salv. P. Z. S. 1870, p. 211*; Ibis, 1872, p. 320'; Cat. Birds Brit. Mus. xvi. p. 251'. 

 Chrysurisca elicice. Cab. & Heine, Mus. Hein. iii. p. 42 ^ 



Supra saturate nitenti-gramineo-viridis, pUeo obscuriore, tectricibtis supracaudalibus laete cupreis ; gutture efc 

 pectore micanti-cyaneis, hypochondriis nitide viridibus, abdomine medio cervino, tectricibus subcaudalibus 

 cupreis cervino Umbatis ; cauda micanti-aureo-cuprea : rostro cameo, apice rdgro. Long, tota 3-5, alae 1'9, 

 caudse 1*1, rostri 0'7. 



9 marl similis, sed gutturis plumis maculis discalibns cyaneis tantum notatis. (Descr. maris et feminae ex La 

 Libertad, Salvador, ilus. nostr.) 



Eab. Guatemala {Skinner ^ ^), Goban, Choctum, Masagua, Retalhuleu {O.S. & F. D. G.) ; 



