File:The biology of the amphibia (1931) (20382503795).jpg

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Title: The biology of the amphibia
Identifier: biologyofamphibi00nobl (find matches)
Year: 1931 (1930s)
Authors: Noble, Gladwyn Kingsley, 1894-1940
Subjects: Amphibians
Publisher: New York : McGraw-Hill
Contributing Library: ASC - York University Libraries
Digitizing Sponsor: York University - University of Toronto Libraries

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RELATIONSHIPS AND CLASSIFICATION 511 Amphodus (including Lophyohyla) may be described as a Hyla which has developed pseudoteeth on the lower jaw and para- sphenoid. In Amphodus both dentary and prearticular are extended into a ragged sawtooth edge. Its palatines are simi- larly edged but the projections are not so elevated. The para- sphenoid odontoids form a broad patch and many are fused together producing oblique ridges. Similar odontoids occasion-
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Fig. 167.—Several species of hylids lack webs between their toes and do not climb. The American species are frequently referred to the genus Pseudacris. Hyla triseriata (A) is a typical Pseudacris, while H.ocularis (B) climbs readily, especially up grass stems and bushes. ally occur in other genera of Hylinae. In Hyla (Nyctimantis) rugiceps they occur on the prevomers together with the true vomerine teeth. The sacrum of Amphodus is moderately dilated and its ovarian eggs are small and densely pigmented. It has, therefore, probably no close affinity to Hemiphractus, which has developed similar bony extensions of the lower jawbones. Amph- odus is known from Trinidad and Brazil. A third group of Hylinae are characterized by the development of excessive bony growths on the skull. In these, strangely enough, the lower jawbones are not extended into pseudoteeth. A num-

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  • bookid:biologyofamphibi00nobl
  • bookyear:1931
  • bookdecade:1930
  • bookcentury:1900
  • bookauthor:Noble_Gladwyn_Kingsley_1894_1940
  • booksubject:Amphibians
  • bookpublisher:New_York_McGraw_Hill
  • bookcontributor:ASC_York_University_Libraries
  • booksponsor:York_University_University_of_Toronto_Libraries
  • bookleafnumber:529
  • bookcollection:YorkUniversity
  • bookcollection:ontario_council_university_libraries
  • bookcollection:toronto
  • BHL Collection
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7 August 2015
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This work is in the public domain because it was published in the United States between 1929 and 1963, and although there may or may not have been a copyright notice, the copyright was not renewed. For further explanation, see Commons:Hirtle chart and the copyright renewal logs. Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.

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