. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. OSSEOUS SEMICIRCULAR CANALS OF BIRDS. 261 ing families : Struthionidae, Spheniscidae, Ciconiidae, Tinamidae, Phasianidae, Aphrizidae, Laridae, Strigidae, Stercorariidae, Alcedi- nidas, Bubonidae, and Hirundinidae. The exterior canal is larger than the posterior canal in the families : Phalacrocoracidae, Cuculidae, Tyrannidas, Corvidas, Icte- ridae, Fringillidae, Mniotiltidae, Troglodytidae, and Turdidae. The posterior and exterior canals are equal in the families : Pelecanidae, Tanagridae, and Paridae. The posterior canal is
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. OSSEOUS SEMICIRCULAR CANALS OF BIRDS. 261 ing families : Struthionidae, Spheniscidae, Ciconiidae, Tinamidae, Phasianidae, Aphrizidae, Laridae, Strigidae, Stercorariidae, Alcedi- nidas, Bubonidae, and Hirundinidae. The exterior canal is larger than the posterior canal in the families : Phalacrocoracidae, Cuculidae, Tyrannidas, Corvidas, Icte- ridae, Fringillidae, Mniotiltidae, Troglodytidae, and Turdidae. The posterior and exterior canals are equal in the families : Pelecanidae, Tanagridae, and Paridae. The posterior canal is larger than the exterior, or the posterior and exterior canals are equal, in the family Falconidas. The exterior canal is larger than the posterior canal, or the exterior and posterior canals are equal, in the families; Ardeidae, Cathartidae, Tetraonidae, Caprimulgidae, and Picidae. Falling under none of the above groups are the families: Ana- tidae, Charadriidae, Scolapacidae, and Columbidae; in each of which there are great generic differences of the relative sizes of the canals. 3. TYPES OF CANALS. In taking the measurements of the canals, I noticed that the position of the canals with reference to one another or the angle at which they are joined, was not always the same. There are. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
