544 F. SUMICHRAST ON THE GEOGRAPHICAL 



of the T. fuscescens, as given in Prof. Band's " Birds of North America," and I mention it 

 here in passing. 



(lull 1 -, <ci>jttr.< caroiinams. 



ClNCLIDiE. 



13. Ciiiclus mexicanus Sw. Vulg. Tordo de agua. Alpine region. A species essentially 

 alpine, but which follows in its coming the watercourses that descend from the Cordilleras 

 down even to the temperate region. We may fix the limits of its distribution at a height 

 varying from 1000 to 2500 metres. 



Saxicolid^e. 



14. Sialia azurea Sw. Vulg. Golondrina azul. Temperate region. Although this species 

 is unquestionably a resident of the department, it is hardly to be found, except at intervals, 

 in the same localities ; at these periods of appearance it is very common throughout the 

 entire temperate region, and from there ascends to localities having a height of at least 

 2000 metres. 



15. Sialia mezicana. Alpine region. This species appears to belong exclusively to the 

 alpine region on the Popocatepetl. I have found it in great numbers at the extreme limits 

 of vegetation. The localities (Cordova, Jalapa) indicated as the places of occurrence of 

 this Sialia by Mr. Sclater, are probably due to imperfect information of the collector. It 

 has never been seen, so far as I know, near Orizaba, the climate and productions of which 

 are analogous to those of these two cities. 



Parid^e and Certhiad^e. 



All the species of this family that to my knowledge inhabit the department are confined 

 to the alpine region, of which they form a characteristic feature. I shall therefore confine 

 myself to a mere mention of the localities in which I have actually observed them. 



16. Lophophanes Wollwcberi. Vulg. Mascarita. Alpine region. Mountains of San Diego, 

 valley of Orizaba; at the height of about 1850 metres. 



17. Parus meridionalis. Vulg. Mascarita. Alpine region. Moyoapam, near Orizaba; 

 height of about 2500 metres. 



18. Psaltriparus melanotis. Alpine region. Mountains of San Diego; height about 1850 

 metres. 



19. Sitta cardUnensis (vel aculeata). Alpine region. Prof. Baird (in litt.) refers to S. caro- 

 linensis, a Sitta killed at Moyoapam, 2500 metres, a specimen of which I had sent to him. I 

 have also obtained it at a great height upon Popocatepetl. 



20. Sitta pggmxea. Alpine region. This little species ascends to the very extreme limits 

 of vegetation on the peak of Orizaba and Popocatepetl. 



21. Certhia mezicana. Alpine region. Moyoapam, Popocatepetl ; peak of Orizaba. 



Troglodytid^e. 



22. Campylorhynchus paUescens. Vulg. Matraca. Alpine region. This is the only species 

 of this genus that is peculiar to the alpine region in this department. The specimens of 

 C. megahpterus — identical, as it appears, with C. pallcsccns — indicated by Mr. Sclater as 

 occurring at Jalapa, must have been, beyond doubt, collected in the neighboring mountains. 

 Near Orizaba I have only found the C. pallescens between an elevation of from 1500 to 2000 

 metres. 



