202 Mr. 0. Salvin on the Ornithology of Guatemala. 



Atlantic coast-region ; and in the same way, though hardly to 

 the same extent, Alta Vera Paz merges into the highlands of 

 the Cordillera. Hence we see that altitude and consequent 

 decrease of temperature is the primary cause for separating the 

 ornithic life of Guatemala into two principal divisions. The 

 minor divisions are chiefly the result of different causes, and de- 

 pend on vegetation and consequent abundance or scarcity of food. 

 Again referring to the Pacific coast-region, it is worthy of 

 remark that only two or three peculiar species are found repre- 

 senting other closely allied species on the Atlantic side, and that 

 the difference is most strongly shown by the absence of many 

 genera common in the corresponding eastern region. To show 

 clearly how these results have been arrived at, it would be 

 necessary to compare the numbers in some tabular form ; but as 

 this would enlarge the subject beyond my present intention, 

 which is simply to correct errors, I leave it for another oppor- 

 tunity. 



1859, p. 5. Turdus grayiifBip. Not confined to districts of up- 

 wards of 4000 feet of elevation, but found throughout 

 the lowlands and as far southward as Panama. 



„ p. 7. Mimus gracilis, Cab. Very rare on the tablelands, 

 and, as far as I am aware, never occurs on the Pacific 

 side. 



„ p. 8. Campylorhynchus capistratus, nobis nee Less. Be- 

 lize specimens probably belong to C. rufinucha [vide 

 supj'o). The true C. capistratus is common on the 

 Pacific side. 



„ p. 9. Troglodytes aedon, nobis (nee Vieill.) = T. interme- 

 dins, Cab., T. hypaedon, Scl. 



„ p. 9. Polioptila mexicana (Bp.). Now considered by Dr. 

 Baird to be identical with the northern P. ccerulea (L.) . 

 (See Rev. Am. B. part i. p. 74.) 



„ p. 12. Icteria velasquesi, Bp. Now considered the same 

 as /. virenSy L. (See Baird, Bev. Am. B. part i. p. 228.) 



„ p. 12. Vireosylvia philadelphica, nobis (nee Cassin;)= V. co- 

 banensis, Scl. P. Z. S. 1860, p. 463. 



