SCOTT: TOXODONTA OF THE SANTA CRUZ BEDS. 1 9 1 
With the exception of some phalanges of the manus, all of the bones 
of the fore-limb are represented in the collection, but not by any single 
individual. The proportions of the various elements cannot therefore, in 
all cases, be determined by a simple comparison of the measurements. 
Measurements. 
No. 15,489. 
No. 15,968. No. 15,967. 
Scapula, length 
■ .411 
•378 
greatest width .... 
.205 
width of neck .... 
.091 
.080 
ant. -post. diam. glen. cav. 
.063 
.062 
“ transv. “ “ “ . 
. .049 
.050 
Humerus, length from head . 
.298 
“ “ “ ext. tuber. . 
•330 
proximal thickness 
.122 
No. 15,256. 
No. 15,982. 
Humerus, distal width over epicondyles 
.099 
.109 
width of trochlea . 
•0 77 
.085 
Ulna, length 
• .331 
•349 
•349 
“ of olecranon 
. .113 
.112 
•115 
“ width at sigmoid notch 
. .051 
•057 
.056 
“ distal width 
.015 
.020 
.020 
“ thickness .... 
.021 
.029 
•0255 
Radius, length 
• -255 
•257 
.260 
proximal width 
.046 
.044 
•045 
“ “ thickness . 
.031 
.028 
.031 
“ distal width .... 
• -055 
.051 
.056 
“ thickness 
. .044 
.042 
The most complete manus in 
the collection, No. 1 
5,460 (which is shown 
in Plate XXII, fig. 5), was found isolated, 
not in 
association with other 
bones, but enough is preserved 
in several 
other individuals to permit a 
comparison. 
Measurements. 
No. 15,460. 
No. 15,968. No. 15,967. 
Carpus, length in median line 
• -045 
width of proximal row 
.084 
“ “ “ distal row . 
.084 
Pisiform, length ..... 
.050 
.045 
greatest dors.-vent. depth 
.032 
.030 
width of free end . 
.023 
.022 .023 
Metacarpal II, length .... 
. .117 
.119 .120 
