Bangs V/r// Xnr Subspecies of American Birds. 155 



of black, and the throat patch less extensive. Similar in size and 

 color of throat patch, to D. cayana ultramarina of Panama to eastern Nica 

 ragua, but the blue portion of the plumage very different, being in the 

 latter form bright ultramarine or cobalt. Size as in true D: cayana.. Type, 

 cT adult: Wing, 61 ; tail, 41.5; tarsus, 15.2 ; culmen, 12.6. 



Remarks. This is the form about which there has been so much discus 

 sion. Salvin and Godman in Biol. Cent. Am. I, p. 244, mention its pecu 

 liarities and say that the pale color of the throat is perfectly constant, but 

 that they do not consider this a distinctive character. Ridgway in Birds 

 of North and Middle America, II, p. 393, foot-note, again calls attention 

 to the differences shown by the Chiriqui bird and very hesitatingly refers 

 it to true D. cayana on account of lack of material. 



In my way of looking at the geographical races of birds I can see no al 

 ternative but to give this form a name. It is remarkable that in Chiriqui 

 there should be a race of Dacnis cayana so exactly like the South American 

 form in general coloration, except for the throat, and yet cut off from that 

 form and nearly surrounded by the dark colored D. cayana ultramarina. 

 There are, however, many other peculiar forms in Chiriqui with equally 

 restricted ranges. 



It is also remarkable that the bird of central Peru should be so much 

 like the Chiriqui form, from which it differs chiefly in size. The measure 

 ments given by Von Berlepsch and Stolzmann for their Dacnis cayana 

 ylaucogularis from La Merced are : Wing, 66.5 to 67 ; tail, 45 to 49.5 ; tarsus, 

 15; culmen, 13 (two adult males). 



Mr. Harry C. Oberholser has kindly compared my Chiriqui male and one 

 in the National Museum with five skins of D. cayana glaucogularis from 

 Peru and finds the difference in size to be constant, and the Chiriqui form 

 also to be paler and more greenish in color. 



Calospiza lavinia cara subsp. nov. 



HONDURAS TANAGER. 



Type from Ceiba, Honduras, c? young adult, No. 10,024, coll. of E. A. 

 and O. Bangs. Collected January 9, 1902, by W. W. Brown, Jr. 



Characters. Similar in color to C. lavinia lavinia (Cassin) from northern 

 Colombia to Nicaragua, but much larger with a much longer and more 

 slender bill. 



MEASUREMENTS. 

 No. 



10.024 6* type 



10.025 ? 



Rnnark*. In a paper on the birds and mammals collected by Mr. Brown 

 on the coast of Honduras * I mentioned the peculiarities of these two 



* Bull. Mus. Comp. Zool. XXXIX, No. 6, p. 155, July, 1903. 



