190 Mr. O. Salvin on the Ornithology of Guatemala. 



Quezaltenango (where Parus, Sitta, and other Mexican high- 

 land forms are yet to be found), Yucatan (where I feel sure 

 much remains to be done, especially amongst the savannas 

 of that peculiar district), and southward along our southern 

 boundary, which, it will be remembered, was the line of the pro- 

 posed Honduras Railway. This line I now believe to be per- 

 fectly arbitrary, as I have little doubt that the Guatemalan 

 fauna really extends as far south as the Rio San Juan and the 

 southern border of the lake of Nicaragua. Passing south of 

 this, we come at once upon the clearly defined and peculiar 

 fauna of Costa Rica. But more on this subject on another 

 occasion, as space will not allow me now to enter critically upon 

 the distribution of ornithic life throughout the isthmus. 



1. Catharus FRANTzii (Cab.): Baird, Rev. Am. Birds, 

 part i. p. 9. 



In November 1861 we obtained a single specimen of this 

 species at Dueiias. It agrees with other specimens in our col- 

 lection from Costa Rica, where it was first discovered by Dr. von 

 Frantzius. 



2. CiNCLUS MEXICANUS, Sw. ? 



A pair of Dippers once only came under my notice. They 

 were seen on the rocks of a mountain-torrent above Totonicapam, 

 at an elevation of about 10,000 feet above the sea. I shot one, 

 but the stream swept it away before I could reach it. 



3. PSALTRIPARUS MELANOTIS, Hartl. 



Originally described from Guatemalan specimens. On more 

 than one occasion I observed what I believe to be this species, 

 in the pine-woods of the mountains near Solola and above the 

 lake of Atitlan. 



4. PoLioPTiLA suPERCiLiARis, Lawr. 



A single male specimen of this Polioptila was brought to us 

 from Chisec. 



5. Certhta mexicana, Gloger : Baird, Rev, Am. Birds, part i. 

 p. 90. 



The Mexican Tree-creeper is by no means uncommon in the 

 pine-forests of the upper zone of the Volcan de Fuego. We also 



