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sists "of the tenable species and subspecies genera and subgenera, added since the publication of the Check-List, together with any necessary eliminations and valid changes in nomenclature made since the Check-List was issued .... The Supplement here presented records the ruling of the Committee on about one hundred distinct questions, involving additions to the Check-List or changes in its nomenclature.

The matter is classified under three heads: I, Additions; II, Eliminations; III, Changes of Nomenclature.

The additions number 23 species and 43 subspecies, one genus and three subgenera. The eliminations are two species and one subspecies. The changes in