240 Messrs. Salvin and Godman on Mexican Birds. 



mountain chain called the Sierra Madre del Sur, which runs 

 nearly parallel to the Pacific^ being separated from the main 

 Cordillera by the Mescala valley, and attains an altitude of 

 from 9000 to 10,000 feet. The species is clearly distinct 

 from the well-known Delattria henrici, which is not un- 

 common in Guatemala and also occupies some of the higher 

 ranges of Mexico on the eastern side. 



We have named this species after Mrs. Herbert Smith, 

 whose energy has added much to our knowledge of the dis- 

 tribution of Mexican birds. 



4- Iache nitida, sp. n. 



(J. Supra nitenti-viridis, capite summo nitenti-cyaneo, 



Cauda chalybeo-cyanea, rectricibus intermediis late fusco 



terminatis : sul)tus Isete cyanea ; abdomine viridi tincto ; 



rostro carneo, apice nigricante : long, tota 3'3, alae 2*0, 



caudse rectr. raed. 0"8, rectr. lat. 1*3, rostri a rictuO"85. 



$ . Supra viridis, subtvis fusca, pectore et hypochondriis 



viridi lavatis ; caudae dimidio basali viridi, dimidio apicali 



chalybeo-cyaneo, rectricibus duabus utrinque externis 



albo terminatis ; rostro nigricante, mandibula (praeter 



apicem) carnea. 



Hab. Mexico, Acapulco, Rio Papagaio, State of Guerrero 



{Mrs. H. H. Smith). 



This beautiful species is most nearly allied to /. doubledayi, 

 but the whole throat and breast are of a richer blue, and the 

 head also is shining blue, not green. The specimen of 

 /. doubledayi with which we have compared it is stated to be 

 from Chinantla, and is that figured in Gould^s ' Monograph 

 of the Humming-Birds.' 



Mrs. Smith's collection contains several specimens of this 

 Humming-bird, all of which were obtained between Aca- 

 pulco and the foot of the Sierra Madre del Sur in the State 

 of Guerrero. 



•f AULACORHAMPHUS PAVONINUS. 



Pteroglossus pavoninus, Gould, P. Z. S. 1835, p. 158 ; 

 id. Mon. Rhamph. ed. 1, t. 30. 



Pteroglossus ivagleri, Sturm, J. Gould'sMonogr.d. Rhamph. 

 Heft 2, t. G (1841). 



