1884. ] 569 [Cope. 
external wall is longer than in any of the other genera of the family, ex- 
tending to a point half-way between the inferior edge of the foramen and 
the middle of the last superior true molar tooth. It is curved both inwards 
and downwards just posterior to the foramen. 
The superior molar teeth do not differ from those of M. guyotianus, M. 
antiquus and M. latifrons, The canines are very robust, and are separated 
from the first true molar by a considerable diastema. 
Measurements. M. 
Length from occipital condyles to line of postglenoid 
f PRORGHEGR NG Veeder a Lai sei cues Wie waien COMO 
Length from. occipital condyles to line of preglenoid 
POLICE CoV Ko ckven ee CTO ER MEM CMeTTCCe Tew caine e vOOU 
4 Length from occipital condyles to line of postfrontal 
PLOGURE cy He ciaWit-ia vie eee Set Umea eae rTt CU alG bearen eRe 
Length from occipital condyles to line of canines, in- 
GUSIVG hows VeN ven niu veey Mtn Ouaics ys Fee UMass. (eeU 
Length from orbit to canine inclusive ..........eese008 076 
Width of occipital condyles inclusive..... ........... .050 
Le COULD HU DHTOUOLDIMIG tins Wow Uv ew ine sas s wee COOL, 
1. DOUW GEM: OUOIDUMES WEN SANNA Ce iris tee e ssn eens COLO P 
** at postglenoid processes inclusive............+. .098 
‘« of skull above glenoid surfaces, ... sine ced UO) 
Pho ReSeC Ca CO RMGNYY: MORRIS I gle wisi vs wyiis ww Gly Wigs sv OM 
Li ce ORY OOM COMMU eae aN ¥4. 5 Uae caters eae 
«at fundus of canine alveoli; about. 029 
eee between last upper molars, inclusive... “080 
“palate at second true molars.... seve bee UDB 
ence eee Ir Dromore; Cee CUGn 
«between superior canineé......... O21 
Depth of occiput to foramen magnum... 08 
Shoe tS * DHSIOCCIPIIAL sve can wny Rema Oty 
re § skull at last superior molar sxsiasies, Riieroas caw 6 OOO. 
ML ay ‘¢ «first premolar, exclusive.... ‘ 046 
| «“ gygomatic arch above glenoid facet ...... 021 
Diameters base crown superior canine ald gat a hace 
(transverse ..... .012 
Length diastema to first premolar 0185 
by PLOMICLAL MOTION). icdied'ndendasmes nes 0865 
oh COUS LOD BOLIOS Wii ee wile a 045 
Diameters Pein. iv if anteroposterior a Otl 
(transverse... O14 
f anteroposterior. .......0:. . 014 
Diameters M. i hi 
NERDS VOTSO TURE Cea wee Canty fv OLS 
Diameters M. iii { MMteroposterior.... cece eee eee ees 018 
TRAM VETSO OCU N Vevey oe deviain vung AON 
