Micropt. supra plumbeo-grisescens, abdomine albescente speculo alarum albo; rostro luteo; ungue nigro.
75. Micropterus Patachonicus.—Nob. in Proceedings of Zool. Soc.
Micropt. supra plumbeo grisescens; gulâ scapularibusque rufescentibus; abdomine speculoque alarum albis; rostro virescenti-nigro, ungue nigro.
Smaller than M. brachypterus.
This bird having a smaller body than the first, is enabled to fly; which with the scapulars and the feathers of the throat being of a redder hue than those of M. Brachypterus, authorizes its being considered as specifically new.
76. Anas nigricollis.—Ind. Orn. ii. 834.
This bird has a wide range on the South American continent. It frequents the River Plata, Strait of Magalhaens, and several parts of the Western Coast, as far up as Chilóe.
77. Anas chiloensis.—Nob. in Proceedings of Zool. Society.
An. fronte, genis, abdomine, uropygio, pteromatibusque albis; capite posteriori, collo, dorso inferiori, ptilis, remigibusque primariis, caudâque fuscis; dorso superiori, pectoreque fusco et albo fasciatis; remigibus secundariis et tertiis scapularibusque nitidè atris, his albo lineatis; abdominis lateribus crissoque rufescentibus; strigâ post oculos, latâ splendidè purpurascenti-viride.