. Bulletin of the British Ornithologists' Club. Birds. jf. M. Cardoso da Silva & D. C. Or en 148 1991 111(3). Figure 1. Distribution of the subspecies of Xiphocolaptes major. ⦠= remoratus; A = castaneus; ⢠= major; â = estebani; T =intergrades between castaneus and major. Measurements of the holotype (in mm). Wing ('flat'), ; tail, ; bill (from insertion to tip), ; tarsus, Paratypes. Three males, AMNH 524676, 524677 and 524678, collected by L. Dinelli on 24 Oct 1901 (first two) and 19 Sep 1902 (last); and two females, AMNH 524679 collected by L. Dinelli o
. Bulletin of the British Ornithologists' Club. Birds. jf. M. Cardoso da Silva & D. C. Or en 148 1991 111(3). Figure 1. Distribution of the subspecies of Xiphocolaptes major. ⦠= remoratus; A = castaneus; ⢠= major; â = estebani; T =intergrades between castaneus and major. Measurements of the holotype (in mm). Wing ('flat'), ; tail, ; bill (from insertion to tip), ; tarsus, Paratypes. Three males, AMNH 524676, 524677 and 524678, collected by L. Dinelli on 24 Oct 1901 (first two) and 19 Sep 1902 (last); and two females, AMNH 524679 collected by L. Dinelli on 24 Oct 1901, and AMNH 524682 collected by S. Venturi on 8 Jul 1900, all from the type locality. Distribution. Known from the type locality and Tafi Viejo, Prov. Tucuman, Argentina (apud Esteban 1948), and the surrounding region. Etymology. The subspecific name honours Argentine ornithologist Juan G. Esteban, who was the first to do a complete revision of the Dendrocolaptidae of his country (Esteban 1948). Comments. X. m. castaneus has plumage which is much more reddish than X. m. major and X. m. estebani. X. m. remoratus, based on the original description, is darker than the nominate subspecies (Pinto 1945) and, consequently, than X. m. estebani. The paratypes show uniformity in the diagnostic characters. Two females (AMNH 524679 and 524682) have very indistinct transverse black bars on the abdomen, these being almost absent in 524682. The other specimens all have well-marked abdominal bars. Comparative measurements of X. m. major, X. m. castaneus and the newly proposed subspecies are presented in Table 1. The observed differences in measurements were not statistically significant for any character, perhaps in part because of the small sample sizes. A single male (AMNH 524680), also labelled from the type locality and supposedly collected together with female paratype AMNH 524682 by Venturi, is indistinguishable from the nominate subspecies, while another male (AMNH 5246
Size: 2105px × 1187px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectbirds, bookyear1893
