PAL.EOSYOPS LEIDY, AND ITS ALLIES. 3r,7 
Skeleton. 
Scapula (No. 10,359), PL XII, fig. 24. — This scapula is not associated with any 
other bones of the skeleton, so that its reference to this genus is not certain. I refer 
it to the genus Limnohyops because it is quite diflferent from the scapuhv deserilx*il as 
belonging to the two species of Palceosyops and is altogether trs) large to lK*long to 
Hyrackytis. It may possibly belong to the genus Telmatothcrium. although it is 
much smaller and lighter than I should expect to find in thiit genus. It lit.s, nioiv- 
over, a proximal part of a humerus whose form and measui’cments corre8|M)iid very 
closely with those of the type specimen of L. laticeps in the Yale (’ollege Museum. 
The following are the peculiarities of this scapula as compaivd with that of P. 
paludosus ■. — 1. The form of the glenoid cavity is higher and nari-ower. 2. The pre- 
scapular fossa is much bent inward, and the plate of bone forming it is tliin. 3. 'I he 
spine forms an acute angle with the plane of the glenoid cavity instead of a right 
angle as in P. paludosus. 4. The tubero.sity is not sepai’ated by a notch from the glenoitl 
border, and the tuberosity differs in shape from that of P. paludosus in lj<*ing imux* 
triangular in outline and acute at its distal portion. 5. The internal surfia-e is pn>- 
vided with a well marked vertical ridge, which is wanting in the scapula of /' 
paludosus. 6. The coracoid region is fully as large and heavy as in the larger 
Figure 8.— Comparative view of humeral trochlea?. 1. Ihpirux itidictu. 2. Pah-ori/opn miiinr. 3. Mi- 
noceros bicomis. 4. Palxotherium latum. 
species of Palceosyops, being noticeably large in proportion to the size of the scapula. 
The neck is also more constricted off, and much .smaller in this scapula than in P. 
paludostis. 
Hutnertis (PL XII, fig. 25) . — There are a number of parts of humeri in the collec- 
ion which I refer to Z. laticeps, one in particular, No. l(»,o67, whicli fits fairly well 1 lie 
radius and ulna which will be described later as belonging to this species. The hum- 
erus shows its primitive character in being much longer than the Ismes of the lower 
arm. The shaft is rather long and slender and has heavy distal ami piT.ximal |K»r- 
tions. The anterior face of the shaft exhibits a prominent ridge, the imsterior con- 
tinuation of the deltoid ridge. The description of the pmximal jHirtion of this 
bone is derived from another specimen. No. 10,307 A. Comparing tlie pn..ximHl 
extremity of the humerus of Z. laticeps with that of Tapirus we find that its liead 
is not only placed farther posteriorly, but is more strongly turned jHist-axially. Tlie 
