204 ZOOLOGY. 



FULIGULA METOPIAS, (Pceppig.) 

 Plate XXVII. Male and female. 



Fidigvla mefopias, (Pcepp.) Gay, Fauna Chilena, Aves, 456. 



Anas mefopias, (Pcepp.) Froriep's Notzen, 1829, No. 529. 



VuLG. Pato sin cresta. 

 Of this apparently little known species several fine specimens are in the present collection, 

 and it is represented as not of rare occurrence. The male is remarkable for a conspicuous pro- 

 tuberance in front at the base of the upper mandible. In the female this part is elevated only. 

 Adult birds of both sexes are figured in our plate. 



EEISMATUEA FEEEUGINEA, Eyton. 



Erismatura ferruginea, Eyton, Mon. Anat, 1838^ 170. 



Gay, Fauna Chilena, Aves, 458. 

 VuLG. Pato Pimpillo. 

 Figure. — Gray, Genera III, PI clxix. 

 Several specimens are in the present collection, though apparently this species is not of com- 

 mon occurrence in Chile. 



MEEGANETTA AEMATA, Gould. 



Merganetta armata, Gould, Proc. Zool. Soc. London, 1841, 95. 

 BapMpterus chilensis, Gay, Fauna Chilena, Aves, 459. 

 VuLG. Pato de la Cordillera. 

 Figures. — Des Murs, Icon. Orn. PI. vi, xlviii. 

 " Gray's Genera III, PI. clxx. 



" Gay, Fauna Chilena, Aves, PI. 



Female specimens correspond precisely with the description of Mr. Gould and the figure of 

 Des Murs, (PI. xlviii) as cited above. Gay, in Fauna Chilena, Aves, p. 459, describes the 

 young male as the female. Of the young male, specimens are in the collection of the Phila- 

 delphia Academy. 



This remarkable bird frequents exclusively the rivers of the Andes, preferring apparently 

 the rapids, and swimming and diving with great facility. 



LAEUS GLAUCODES, Meyeu. 



Larus glaucodes, Meyen, Nov. Act. XVI, 1834, 115, PL xxiv. 

 Larus cirrocephalus, (Viell.) Gay, Fauna Chilena, Aves, 482. 

 VuLG. Cagidl. 

 Stated to be common on the coast, and occasionally ascending the rivers. 



LAEUS DOMINICANUS, Licht. 



Larus dominicanus, (Light.) Verz. 1823^ 82. 



Gay, Fauna Chilena, Aves, 480. 

 VuLG. Gaviota grande. 

 Figure. — Gray's Genera III, PI. clxxx. 



