348 



SNODGRASS AND HELLER 



on Albemarle, and on the southern Seymour Island. The birds inhab- 

 ited the crevices of the tufa cliffs facing the ocean about Tagus Cove. 



MEASUREMENTS OF ADULT SPECIMENS OF Progne 



Genus Hirundo Linn. 



Hirundo LINNAEUS, Syst, Nat. ed. 10, i, p. 191, 1758. 

 Range. Cosmopolitan. 



72. HIRUNDO ERYTHROGASTER Bodd. 



Hirundo erythrogaster BODD., Tabl. PL End., p. 45, 1873. 

 Hirundo rustica erythrogastra ROTHSCHILD AND HARTERT, Novit. Zool., vi, 

 p. 152, 1899. 



Range. Breeding in North America, migrating into Central and 

 South America. Galapagos Archipelago : Charles, Chatham and 

 Hood. 



We did not obtain any specimens of this species, but in May we 

 saw several individuals flying about over Hood. The time of the 

 year would lead one to suppose that they are resident in the archipelago. 



Family MNIOTILTID^E. 

 Genus Certhidea Gould. 

 Certhidea GOULD, Proc. Zool. Soc. Lond., p. 7, 1837 (Galapagos Islands). 



Range. Galapagos Archipelago. 



This genus is of doubtful affinities. It was described by Gould as 

 belonging to the Fringillidae, but was placed in the Ccerebidae by 

 Sclater and Salvin. Lucas (Proc. U. S. Nat. Mus., xvn, p. 309, 

 1894) concluded from a study of the anatomy of the genus that it has 

 a " very near relation with Dendroica " and that it " surely belongs 

 among the Mniotiltidae." 



