66 : Bulletin American Museum of Natural History.  [Vol. ME XKLV, 
The jaws are somewhat fragmentary, the teeth considerably worn and 
many of them missing or broken; a few fragments of the cranium, a number 
of broken vertebree, most of the limb-bones, both scaphoids and cuneiforms, 
the astragalus and calcaneum, and various fragments of other parts are 
preserved. 
The skull fragments show a prominent preglenoid crest oe in Lim- 
nocyon, present in Oxyena), postglenoid foramen as usual in Creodonts, 
rather high sagittal crest, as in Lemnocyon. 
The limb bones are nearly equal in length to those of L. verus but much 
slenderer. The distal roll of the humerus is more obliquely set, the shaft 
is more slender, the deltoid crest less heavy and ends somewhat more ab- 
ruptly. ‘The head of the radius is round-oval instead of flattened oval as in 
L. verus. ‘The distal end of the radius is wider, not so deep (dorsoventrally) 
and the shaft less curved and much more slender. The distal end of the 
ulna is more expanded, the shaft thinner, the olecranon shorter. The femur 
is much lighter in the shaft, patellar trochlea somewhat shorter, condyles 
not so deep or heavy. ‘Tibia and fibula have more slender shafts, distal end 
of fibula less massive, and lacking calcanear facet; distal trochlea of tibia 
much more oblique. 
The astragalus has a singularly primitive aspect, with shallow body, 
flattened trochlea short and wide and with no internal crest, and the very 
obliquely set wide flat head. The caleaneum is much straighter than in 
Limnocyon, the peroneal tubercle less prominent, fibular facet wholly 
absent, cuboid facet less oblique. 
The scaphoid has the proximal facet extended over the entire superior 
surface making a sharp crest with the centrale and trapezium facets (the 
trapezoid probably barely touches the scaphoid). The hook of the scaphoid 
is not at all prominent. The cuneiform is of comparatively small height, 
the hook small. The pisiform has a long neck, head little expanded. 
The data indicate a wide, low carpus and tarsus, primitive plantigrade 
feet, with limited motion in the proximal joint (tarso-crural, carpo-ante- 
brachial). 
Measurements of Type. 
TOOT Cer ii ee ies ae 54.2 
se re PIN aie as teeta Sead Ccchay Mean Onl aw cute yi eae ae Ug Oh TM 18 ae 
- Do OOO ee re er 9.1 
is NANETTE ks VAIS OA Aa ee Seo PG dk Coe CR ea 
ue ~ My» eR ouch ati 1 i aa, Leet meng ea : . 
POE VNU te doee ui i a he a ee eee al .4 
DETER ois ht neat he es Ce 2 aa aah a Lc oe 
HE dipipeters dare tre Pe EG ae tye hele es io St 4,2 
