E. Newton and Gadow, 1893,
Mare aux Songes, Mauritius.
Sometimes placed in subgenus Nettion within the A. gibberifrons species-group. Closest living relative formerly reckoned to be A. melleri, but now thought to be A. bernieri. Monotypic.
Estimated year of extinction on Mauritius c. 1700; apparently about a decade later on Reunion#R. Demise seems to have been result of excessive hunting.
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