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 [ Cyrtostomus frenatus hachisuka Mathews ] Cyrtostomus frenatus hachisuka Mathews, 1926: 67 (Obi Island). Normally, the type of this form would be expected to be in AMNH, but as noted in the original description, the holotype is in BMNH ( Warren and Harrison, 1971: 228 ).