Type Specimens Of Birds In The American Museum Of Natural History Part 8. Passeriformes: Author Pachycephalidae Author Aegithalidae Author Remizidae Author Paridae Author Sittidae Author Neosittidae Author Certhiidae Author Rhabdornithidae Author Climacteridae Author Dicaeidae Author Pardalotidae Author Nectariniidae, And Author Lecroy, Mary Division of Vertebrate Zoology (Ornithology) American Museum of Natural History (lecroy @ amnh. org) text Bulletin of the American Museum of Natural History 2010 2010-06-03 2010 333 1 178 journal article 0003-0090 Pachycephala griseiceps gagiensis Mayr Pachycephala griseiceps gagiensis Mayr, 1940: 3 (Gagi Island, west of Waigeu). Now Pachycephala simplex gagiensis Mayr, 1940 . See Schodde and Mason, 1999: 439–440 , and Boles, 2007: 416 . Holotype : AMNH 658525 , female, collected on Gag ( 5 Gagi) Island, 00.25S , 129.53E (Times Atlas), Papua Province , Indonesia , on 5 March 1863 , by Heinrich A. Bernstein. From the Rothschild Collection. COMMENTS: Mayr gave the AMNH number of the holotype in the original description ; he had a single specimen. Rothschild had received this specimen from RMNH.