NOTES ON THE CANIDH® OF THE WHITE RIVER OLIGOCENE. 383 
does not extend over upon the styloid process, from which it is separated by a broad and 
deep notch. 
The w/na is, in its way, as peculiar as the radius. The olecranon is quite typically 
fissipede in character and differs from that of the creodonts in its comparative shortness 
and breadth ; though proportionately somewhat longer than in Canis, it is hardly so long 
as in Daphenus, and the sulcus for the tendons of the anconeal muscles is more distinct 
than in the former. The sigmoid notch is hardly so deep as in Canis, and, in particular, 
the internal facet for the humerus projects less in front of the plane of the shaft, and the 
external process is very feebly developed. The radial facet is narrower and less deeply 
concaye than in the modern Canide, but has a somewhat greater vertical diameter. 
The shaft of the ulna is decidedly less reduced than in the recent representatives of 
the family, and for most of its length is little or not at all more slender than that of the 
radius. In its proximal portion the shaft is much more compressed laterally and thicker 
antero-posteriorly than in Canis, in which genus this portion of the shaft is trihedral. 
The middle and distal portions are of triangular section, none of it haying the subcy- 
lindrical shape which characterizes the distal one-third of the shaft in the recent genus. 
The distal end has quite a different shape from that seen in Daphenus, a difference which 
is due to the much greater prominence of the radial facet in the latter. In Cynodictis 
this facet is almost sessile and projects but little more than it does in Canis. The car- 
pal facet is very small and quite simply convex. 
Measurements. 
| No. 10493. | No. 11012. | No. 11381. | No. 11382, | No. 11432. 
| | | | 
Scapula, length seeceeee tone | 0.054 
sf greatest Width...-...---ce..-esece-nneenoeeeeneenceeecennereren ners 2.049 | 
ag TRAHAN.) (a0 <senbpe cnneroshdspecetato baduoconcasccesAceacecsencras | 013 
ue ant. post.-diameter of glenoid cavity ....-.-++.+-.2---..+-0 .012 |  .0095 .0095 
Ge transverse sf Be ue | -008 007 | .007 
TETMITIVERES METH... cocesascononnccduncoecbadgnonocooasnooossHosodcossoCersceKs 075) | .070 070 
fed. antdpost.. dani. proxsend! ais. /isatiived Saaeeees 012 | 015 1OLSINn |e Ols 015 
i transy. SS fe OO aso cule secs ennneaeseosernins anne | 014 | .016 | 013 0125 
& preadihnko te dustallendeesseeseeceeceseetesesesseseeeceseeeseeeee | 016 .020 | 015 
£ epee Cetrochll eaiescerecrccncnacetes sane cesasse-teeee ener 012 0145 | O11 
TREGUTIS, TWerepal 1 205-000 nanan oceongoosa5no ada q5HGeDonecacHbcaoemacesNecoHESHEaS | .057 061 | | 
«« ant post. diam. prox. end 005 .006 007. | .005 005 
“<— transy. ce ee 1007 |) 007 | 2009 007 007 
Pm are cidital endemic ek eee [Perot sors lose | 009 
“ eee eA call MACE biases eeeeessa ese eae sae ears 0055 | .606 007 0055 
Ulna, length | ee ore | 
fs CORE Ofer OleECrAn OMe ectomtes cs ecees ton aacceMocere cocci soc-leace aes | | .007 -010 .0095 -009 
Co {Tp RMERS Wt CECE AGI cosonaccocemencenssaconaoasesagsocoureAsnooc | .010 .008 .008 
A, 2 §& SVG, MIO Zr 
