Todd-Carriker: Birds of Santa Marta Region, Colombia. 97 



above table is not as complete as could be wished ; nevertheless, it 

 agrees well in the main with the same comparisons of the life of the 

 Subtropical Zone for the three regions in question. The degree of 

 differentiation shown by the Sierra Nevada Temperate Zone fauna, as 

 compared with that of the other two ranges, is even better marked 

 than for the Subtropical Zone. The Sierra Nevada has only nine 



Fig. 8. Ranges of the northern forms of Octhodicota, a genus of the Tem- 

 perate Zone with a representative each in the Colombian Andes, the Venezuelan 

 Andes, and the Sierra Nevada de Santa Marta. (i) O. fumigata; (2) O. 

 lugiibris ; (3) O. pernix. 



