Osteology of the North American Tetraonidae . Fis SHUFELDT ON THE OSTEOLOGY OF AMERICAN TETR A 0 N I D>C. > ^UTHOKS KDITION. DEPARTMENT OP THE INTERIOR. UNITED STATES GEOLOGICAL AND GEOGRAPHICAL SURVEY. F. V. HAYDEN, U. S. Geologist-in-Charge. OSTEOLOGY LANIUS LDDOVICIANUS EXCUBITORIDES. Dr. R. W. SHUFELDT, U. S. A. EXTRACTED FROM THE BULLETIN OF THE SURVEY, Vol. VI, No. 2. Washington, September 19, 1881. Art. XIV.—Osteology of liaiiiiis liulovicmniis exciibi- toritJes. By R. W, Sliufeldt, J^I. D., First Liieiit. Med. Dcpt. U. S. Army. Mr. Eobert Eidgway, in his carefully prepared c

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Osteology of the North American Tetraonidae . Fis SHUFELDT ON THE OSTEOLOGY OF AMERICAN TETR A 0 N I D>C. > ^UTHOKS KDITION. DEPARTMENT OP THE INTERIOR. UNITED STATES GEOLOGICAL AND GEOGRAPHICAL SURVEY. F. V. HAYDEN, U. S. Geologist-in-Charge. OSTEOLOGY LANIUS LDDOVICIANUS EXCUBITORIDES. Dr. R. W. SHUFELDT, U. S. A. EXTRACTED FROM THE BULLETIN OF THE SURVEY, Vol. VI, No. 2. Washington, September 19, 1881. Art. XIV.—Osteology of liaiiiiis liulovicmniis exciibi- toritJes. By R. W, Sliufeldt, J^I. D., First Liieiit. Med. Dcpt. U. S. Army. Mr. Eobert Eidgway, in his carefully prepared clieck-list of NorthAmerican Birds (Bull. Ko. 21, iSTomenclature of N. American Birds,chiefly contained in the TJ. S. Nat. Mus., Washington, D. C), gives usthe rei)resentatives of Laniidce, the species boreaUs and ludovicianus,with the two occidental varieties of the last, robustus and exciibitorides,which latter form we have chosen as the subject of this paper to demon-strate the pecuharities of the skeleton of these interesting birds. Thehabits of

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Keywords: ., bookcentury1800, bookdecade1880, bookpublisherwashi, bookyear1882