BUCCO.— MALACOPTILA. 515 



cantibus ; Cauda castanea, nigro regulariter fasciata ; rostro plumbesoente, mandibula infra paUida ; pedibus 

 coryUms. Long, tota 8-5, ala 3-65, oaudsB 3-3, rostri a rictu 1-65, tarsi 0-75. (Descr. exempl. ex 

 Yeraguas, Panama. Mus. nostr.) 

 Sexus similis. 



Eah. Panama, Veraguas {Arc6 ^), Lion Hill (M'Leanmn, in mus. G. N. Lawrence).— 

 Colombia 2; Ecuador 3. 



Skins of this £ucco from the State of Panama agree accurately with others from 

 Antioquia, as represented on the larger figure of Mr. Sclater's plate, in being of a 

 distinct fulvous tint over the whole of the under surface and the cervical collar, whereas 

 in the types of B. radiatus and some other skins of Bogota make the under plumage 

 is nearly pure white. The ranges of these two forms cannot he yet traced with 

 accuracy. As might be expected the fulvous race is found in Western Ecuador 3, but 

 it also occurs on the eastern side of the Andes of that country at Sarayacu, and both 

 races occur in collections made by the bird-himters of Bogota. The latter fact may 

 probably be explained by the supposition that the white-breasted form is obtained on 

 the eastern side of the cordillera drained by the Eio Meta, while the fulvous form 

 comes from the valleys of the Rio Magdalena. The bird-hunters work in both 

 directions, and their spoils are mixed in the capital by the merchants who export the 

 skins. No Bucco is found near Bogota itself. Mr. Sclater duly noted these differences 

 in his Monograph ^, but was inclined to think the pale colour of the typical birds was 

 due to bleaching from damp. We do not agree to this suggestion, but fully believe 

 each form has its own exclusive range, and therefore deserving of recognition by name. 



Though noticed by several collectors, Salmon in Antioquia 3, Buckley, Illingworth, 

 and Stolzmann * in Ecuador, we have only the brief note concerning it from the latter 

 traveller to the effect that the irides of specimens obtained at Chimbo were ochre of the 

 same colour as the abdomen ^. 



The evidence of the occurrence of this Bucco in the State of Panama rests on 

 specimens sent by Arce in his later collections made at some place west of the 

 Line of Railway. Its name does not appear in the lists prepared by Salvin up to 

 1870. M'Leannan did not meet with it on the Railway itself at the time Lawrence 

 was compiling the lists of his collections, but he subsequently sent him a pair, which 

 Salvin saw in Lawrence's possession in 1874. 



B. Bostrum dehilius, apice minime hamato. 



MALACOPTILA. 



Malacoptila, Gray, List Gen. Birds, p. 13 (1841)' j Scl. Monogr. Jacamars and PuflF-birds, p. xxxvi; 

 Cat. Birds Brit. Mus. xix. p. 193. 

 The number of supposed species of Malacoptila was reduced to seven by Mr. Sclater 

 in his ' Monograph of the Bucconidse,' and this number was maintained in his Catalogue 



65* 



