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This third part of "Type Specimens of Birds in the American Museum of Natural History" continues the list begun by James C. Greenway, Jr., and corresponds to taxa covered in Volume 7 of Peters' Checklist of Birds of the World. In taxonomic order (according to Peters' Check-list), this section precedes Part 4, which was published earlier. Four hundred forty-two published names are discussed herein. For each taxon, the type locality and currently recognized name are given; for many, comments on taxonomic history are also provided.

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We describe a new species of Cettia from the Crown Prince Range, Bougainville Island, North Solomons Province, Papua New Guinea. By combining morphometric and molecular phylogenetic techniques, we attempt to broaden our understanding of evolutionary processes within the genus Cettia in the southwest Pacific. The new species proves to be distinct with respect to several morphological characteristics that are most probably related to a more terrestrial lifestyle than that of its congeners. Molecular data agree with morphological data in establishing that these birds are at least as distinct from the other island forms of Cettia as those forms are from each other, far exceeding intraspecific variation. These data and the restricted distribution of the population on Bougainville strongly support recognition of a new species. The application of molecular phylogenetic techniques also supports the idea that the new species and other island forms of Cettia confined to mountains on southwest Pacific islands are derived from a single common ancestor rather than being independently derived from one or more mainland forms. In addition, the relatively recent discovery of two new species of Cettia suggests that additional forms await discovery in other poorly known areas of the southwest Pacific. Our results point to the need for further molecular studies and for additional field research into the distribution and ecology of forest songbirds on islands.

Both pictured birds were collected at Cachabí. Holotype and unique specimen (above) of Nemosia rosenbergi Rothschild, 1898. The very different female had been described earlier, and Rothschild's name is now a synonym of Chrysothlypis salmoni. Holotype and unique specimen (below) of Buthraupis rothschildi Berlepsch, 1897. (Paynter, 1970a). The original description of each taxon has been consulted and the currently accepted name of the taxon has been listed with reference to . In a few cases, more recent studies have been taken into account. Modern names and coordinates of type localities are given when possible and comments on taxonomic history are provided. In this part, 338 names are treated; types of 19 of these are not in AMNH or were not found.This part of the type list, as well as all previous parts, are searchable and available for download from the AMNH Library website: http://digitallibrary.amnh.org/dspace/.