SINCLAIR: MARSUPIALIA OF THE SANTA CRUZ BEDS. 393 



Eleventh dorsal, width across prezygapophyses ...... .034 



Twelfth " length of centrum 019 



" width of posterior face of centrum ..... .0164 



" " depth " " " " 0104 



" width across prezygapophyses . . . . . . .032 



" height, including neural spine ...... .0275 



Thirteenth " length of centrum 020 



" width across prezygapophyses ...... .027 



" height, including neural spine ...... .0275 



First lumbar, length of centrum ........ .021 



" width of posterior face of centrum . ..... .016 



" " depth " " ....<< OI25 



" " width across prezygapophyses . . . . . .028 



" " height, including neural spine . . . . . . .031 



Sixth lumbar, length of centrum ........ .022 



" " width of anterior face of centrum ...... .017 



" " depth " " " " . . ... .0125 



width across prezygapophyses ...... .026 



" " transverse processes ...... .045 



First sacral, length of centrum ......... .018 



" greatest width across auricular processes ..... .038 



Scapula, length . . - . . . . . . . . .102 



" width of neck .......... .018 



" antero-posterior diameter of glenoid cavity including coracoid process .0228 

 " transverse " " " " . . . . . . .0135 



Humerus, length . . . . . . . . . . . .112 



" width of distal end 033 



Radius, length exclusive of distal epiphysis ...... .0785 



antero-posterior diameter of head ....... .0087 



" transverse " " " 0135 



" width of distal end ......... .013 



Ulna, length, exclusive of distal epiphysis ....... -0995 



" width at lower margin of sigmoid cavity ...... -0195 



Femur, length . . . . . . . . . . . . -1255 



" width of proximal end . . . . . . ' . . . .030 



" " " distal end 024 



Tibia, length . . . . . . . . . . . . .116 



" antero-posterior diameter of proximal end ..... .02 1 5 



transverse " " distal " OI2 



Fibula, length 1095 



" antero-posterior diameter of proximal end ..... .014 



" transverse " " distal " .0115 



Pelvis, length 123 



" greatest width of ilium ......... -0275 



" antero-posterior diameter of acetabulum . . . . . . -O'SS 



" transverse " " " 0145 



