168 



REVIEW OF AMERICAN BIRDS. 



[part I. 



I have notliing especial to add to the account of this species con- 

 tained in the " Birds of Xorth America," except to say that the 

 diii'ereuces there referred to in the length of the bill are seen in the 

 more recent specimens, and belong more particularly to southern 

 sliins. Dr. Brewer considers the eggs of the southern bird so differ- 

 ent as to warrant their specific separation. I find it, however, very 

 difficult to express the differences other than as consisting iu longer 

 bill and less degree of black beneath. 



This species is remarkable as occurring at Mazatlan and Colima, 

 and not in California or the Rocky Mountains. 



PARULA, Bon. 



Chloris, BoiE, Isis, 182(3, 972 (not of MffiiiRiNG, 1752). (Type Parus 



americanus, L.) 

 Sijlvicola^ SwAiNsoN, Zool. Jour. Ill, July, 1827, 160 (not of Humphrey, 



Mus. Calonnianum, 1797, 60). (Same type.) 

 Panda, Bon., Geog. Cotnp. Cat. 1838. (Same type.) 

 Compsothlypis, Cab. Mus. Hein. 1850-51, 20. (Same type.) (Panda 



rejected as contrary to the Linniean canons of nomenclature.) 



If Moehring's genera are rejected as made prior to the establish- 

 ment of the Linntean binomial nomenclature, and by a non-binomial 

 author, there is, perhaps, no reason why Boie's name Chloris should 

 not be adopted for this group. I, however, leave the matter in 

 abeyance for the present. 



