Bulletin of the American Museum of Natural History Volume 23

Bulletin of the American Museum of Natural History Volume 23

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1907 edition. Excerpt: ...Flood plain. Mesquite association. Station III. Rillito Creek. north of Tucson. Substation 1. Stream bed. " 2. Banks. Willow-Poplar association. " 3. Flood-plain. Mesquite association. Station IV. Mesa and foothills northeast of Tucson Mountains. west of Tucson. Substation 1. Hills. Suahai'oOcotillo association. (Fig. 15.) " 'Z. Slopes. Creosote bush association. " 3. Bottom of arroyos. Acacia association. Station V. Alluvial slopes southwest of Santa Catalina.lts., northeast of Tucson. Substation 1. Hills. Suaharo-Ocotillo association. " 2. Slopes. Creosote bush association, " 3. Bottom of arroyos. Acacia association. Station VI. Lower part of Sabino Canon. Substation 1. Stream. Association of aquatics. " 2. Bottom of Canon. 'illo'-Poplar association. _ _1 Most of the arable land in this region alone the Santa Cruz River, and about Tucson. the Orlslnfll Dlflflls have been mostly removed so 'that this zone may now very appropriately be cal ed the zone of cultivated ' _eds. as suqgestecl to me hr Prof. Spalding. In our collecting. however. we confined our attention to loca ities where original conditions still prevail. LocaliIi.--A number of specimens of this Spadefoot were taken at' Tucson, where it is apparently a common form. Description of S)('I.'I7Zt'Il8.--These specimens have the coarsely tuberculate skiii, obscure parotids a iid rather distinct tynipniiiiin characteristic of S. coucliii. Color above diil l brownish yellow to bright greenish yellow, with an irregular network of br own bars. These may be broad and fewer with broad intersp-aces, or iiarro spaces. Tubercles on the back (ecept between the hind limbs) black, those on the Sl(lCS, and on the...show more

Product details

  • Paperback
  • 189 x 246 x 17mm | 567g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236876938
  • 9781236876935