234 MEMOIRS OF THE CARNEGIE MUSEUM. 
apparently does not extend above the head. There is a broad and rugose third 
trochanter on the femur, a character which is wanting in some of the European 
genera, e. g., Macrotherium. ‘The third trochanter is relatively less developed than 
in M. elatus or M. peterson. The lesser trochanter is also quite prominent. The 
condyles of the femur are broken. The tibia, which is short and heavy, has a 
prominent spine, which separates the broad articular facets for the distal end of 
the femur; the cnemial crest is well developed. The fibula, though small, has a 
complete shaft. 
M®&ASUREMENTS. 
Mm 
Greatestlenrthvolradiusrandtuln apes ete nee ae ne 600 
Merticalidiameterolscaphoidan nese eee eee eee eee eee eer eee 40 
Vertical diameter ofttrapezoids seer en eee ee eee 30 
Teng thy of! Me. DU 5 .05 ac fas Sta cai ee ee Cee eee a eee 170 
Transverse diameter of carpus at the head of the metacarapls.............. 96 
engthvoftiemnuryapproxmatelypeeeee eel eeee reo ee eee rete orrncr 500 
encthyvol tibia approximately ane eeeee erect eee eter Erne 385 
Greatestilengthiolcaleancumper eee eee eee cree ree erent: 113 
Transverse diameter of tuberosity of caleaneum near the free end........... 35 
Werticalidiametenoiastracalushemceereeee rere coe eee Creer rrrr 64 
Greatest transverse diameter of astragalus.................0cccececeecees 82 
9. M. merriami sp. nov. 
Moropus sp.? Merriam, Publ. Univ. California, Bull. Dept. Geol., Vol. VI, - 
pp. 267-271 (1911). 
The remains described and figured by Professor Merriam from the Virgin 
Valley Beds of Oregon, not only appear to be from a later geological horizon than 
the forms described by Leidy and Marsh from the John Day formations, but they 
represent an animal of much greater size than oregonensis, distans, and senex, 
judging from the material brought to our knowledge. It seems highly probable 
that in this case we are dealing with a form, which is specifically distinct from the 
others found in Oregon. Should subsequent researches justify this opinion, we 
propose for the animal, the remains of which have been well described and figured 
by Professor Merriam, and which may therefore be regarded as the types, the name 
above given, in recognition of the labors of this distinguished paleontologist. 
