NOTES ON THE CANIDE OF THE WHITE RIVER OLIGOCENE. 345 
change which is obviously correlated with the increased size of the radius. The distal 
end of the ulna in Daphenus is narrow and carries a continuous convex articular surface, 
which is not divided into separate facets for the pisiform and pyramidal. The distal 
radial facet is raised upon a prominent’ projection, another point of resemblance to the 
cats and of difference from the existing representatives of the Canide. 
Measurements. 
No. 11424. | No. 11425. 
Humerus, width of distal end.............c.cccccscescccceseneccceesesenccncnsccnccecnsecsscessesenseecnesensensesseseonece 0.050 
oS uo “« trochlea....... -033 
Radius, ant.-post. diameter of head -016 
““ transverse a ee 021 
CS Jonemialiln ost GIST GiVEl -osccocoacacasasdesbsoceRenabocacsgacoqsEsoonoSn0e9C90090000 SosoDaSooUSBSbIEO5ORGeG0N00 Bag000a08 -022 
oY €¢ “© Carpal FACE -..gsceseessensearseenees Beemer c cia seeinalseneteciseiienieitonceeicisciecienstemsteieietseswia sie .014 
Ulna, Seen di stale Da seeet ot acc ener occesel ck sees canscaccatecssscesaireancec seca nonecwstinns ausavanctcecaciersesasiet .013 
y G6 96 erp TENCE tracccogasoococadacdoo 6d0000506C0 0600000930007 .bo5ene 4959p oCH9ebscaR>uccaDpecNdesebadGnD000 .008 
V. THE Manvs. 
Of the carpus the only element preserved is a single scapho-lunar of J). vetus, inter- 
esting as showing that the coalescence of these elements had already taken place. This 
bone differs in a marked way from that of both recent canines and felines, but resembles 
the seapho-lunar of the White River sabre-tooth, Hoplophoneus. It is broad transversely 
and thick in the dorso-palmar diameter, but very low proximo-distally, even more so 
than in Canis; the tubercle at the postero-internal angle of the bone is well marked, but 
smaller than in the felines or modern dogs. The radial facet is simply convex in both 
directions, not having the postero-internal saddle-shaped extension which occurs in the 
recent dogs. This radial facet is reflected far oyer upon the dorsal and internal surfaces 
of the bone, converting the inner side into a thin edge, formed by the junction of the 
radial and trapezial facets. 
On the distal end of the scapho-lunar are three plainly distinguished facets, for the 
unciform, magnum and trapezoid respectively. The very deeply excavated unciform 
surface reduces the ulnar side of the scapho-lunar to an edge, not yery much thicker 
than the radial border, and hence there is no well-defined facet for the pyramidal, such 
as occurs in Canis. The shape and proportions of the unciform and magnum surfaces 
are very much as in the latter genus, but that for the trapezoid is not demarcated from 
that for the trapezium, though there can be little doubt that the latter element articulated 
with the scaphoid, as it certainly does both in Cynodictis and in Canis. The general 
