UNIVERSITY OF CALIFORNIA PUBLICATIONS 
IN 
ZOOLOGY 
Vol. 17, No. 8, pp. 75-114, pls. 5-12, 18 text figures March 3, 1917 
OSTEOLOGICAL RELATIONSHIPS OF THREE 
SPECIES OF BEAVERS 
BY 
F. HARVEY HOLDEN 
(Contribution from the Museum of Vertebrate Zoology of the University of California) 
CONTENTS 
PAGE 
TRISHA ODIGIY, sc eee rer SS Be RE Ce OE 76 
SYEOYDO) _. cescennstes cee cAs Ae Annee CCR RS EE Be RE ep Ree 76 
NL Ee ae Sener renee re 76 
PACK O WIE COM ONES) c22esccscsnceccocancnesescesnecseseesesccrosteosesentesecanscasceserecseuneenaeecececarucvaseaeesore Cee 
(CHERRY aE EASY ES ee 78 
(CHER TIOEN ALAC OEE) ce ne 
Thoracic and lumbar vertebrae 
SHENG Tee RECS eS) OUT Eee ere ee ee eee eee ee eee eee 
Wan CL ANRVENUe Dm 8 Cee cees cman asec ose eh kuna n ceete ssa suecccsesecadssueete retvat up casuceodseecuacecaeeencn nese 
TEP SYS) ERENCES eT ae eee eee Rao Rh ee eee ea 
(SOE SO cs oe 88 
Clayicle . 89 
1S RREPR@ TES dee aac eee seco Ree ee ee RS a EN ae oe 89 
TREY GIIETS), pte ees Sete ian ee tee er Sore an eR ee ee OREN PCO EE gee RES 91 
TUMNEES ge Se RS et ee fe Se eC er Ee Pee SP et een 91 
(OS) THPOU ENA ATI 000, oe ee een 92 
Femur 
Tibia 
TENANTS 5 ee en i ca g 
NIELSEN EE US) so Sioa Sans ctecttesetssbeads 95 
(CRI CRTAETICD ee ee a eee ae 95 
Tabulation of the differences noted in the bones of the limbs and of the pectoral 
Bias! ORTRIS MAGUS sect re Se eR OS EE EC So SSE See EEOC 96 
RGememell MO lise revev til ON Speco cess oes ae cad cc cece aa geet ee cee ee SS 99 
TL pitic@rHEy REARS: COMET cae a ee er eee 99 
sonian Instig, 
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