Todd-Carriker : Birds of Santa Marta Region, Colombia. 87 



Sporathraupis cyanocephala . auricrissa margarita hypophaa 



Tangara heinei heinei heinei 



Tangara cyanoptera cyanoptera cyanoptera 



Pcecilothraupis ^ palpebrosa melanogenys ^ palpebrosamel- 



subsp. anjfis 



Chlorophanes frontalis psittacina frontalis 



Pheucticus laubmanni laubmanni 



Spofophila luctuosa luctuosa 



Buarremon ' basilicus phaopleurus 



Atlapetes ■melano<cephalus 



Catamblyrhynchus diadema. diadema diadema 



Analysis and summary of this table yields the fallowing results: 



Common to all three ranges 19 



Common to Venezuelan Andes and Eastern Andes only; 



Sierra Nevada form distinct 10 



Common to Venezuelan Andes and Sierra Nevada only. . . 13 

 With representative forms in Venezuelan Andes and 



Sierra Nevada respectively, but wanting in Eastern 



Andes 6 



Common to Eastern Andes and Sierra Nevada only 4 



With representative forms in Eastern Andes and Sierra 



Nevada respectively, but wanting in Venezuelan Andes. 3 



Represented by a different form in each range 12 



Isolated forms, peculiar to the Sierra Nevada 8 



Total number of Subtropical Zone forms in Sierra 

 Nevada i 75 



Autochthonous Subtropical Zone forms in Sierra 

 Nevada 39 



There are thus only four cases in which a given form is common to 

 the Eastern Andes and the Sierra Nevada alone: Dysithamnus oliva- 

 ceus, Euscarthmus granadensis, Sporophila luctuosa, and Catambly- 

 rhynchus diadema diadema. There is reason to believe that, when the 

 Andes of Venezuela shall have been more systematically investigated, 

 these four forms will be found there, in which case they would then 

 fall into the class containing the forms common to all three ranges. 

 There are also three cases in which the forms from the Sierra Nevada 

 and Eastern Andes respectively are closely related, while- a represen- 

 tative from the Venezuelan Andes is wanting. We venture to predict 



