iW 
Cope.} 544 (Jan. 18, 
extent posteriorly. Enamel smooth, The last inferior molar is not so 
disproportionately larger than the second as in J. leptorhynchus, arenarum 
and elegans ; and with the second, has little of a prismatic character. No 
cingula,. 
Measurements. M. 
Length from occipital condyle to postglenoid process... .047 
ae WW v a “* nostfrontal process. .. .101 
Vertical diameter of orbit.......... AD TaN Martie UO 
Depth of malar bone at middle of orbit. .... alia bade @ Ht Ue 
Mi “« zygomatic process at posterior angle. ......-. 024 
Width at middle of supraorbital border.............05+ 060 
66 Fe IAL OMG He aisle. iubig AA ed WN tae MN Ee em ON 
‘ of occipital condyles..... Sieh ea WETS RGA A 032 
++ occiput at lateral crests, 66.0... seecrses sens .0B6 
ete ff © OOM CV UGH eis iely divides mivin® nyse! eth bnipony duals 061 
Elevation of occiput with condyles. ....... SH etO wiv as oe 054 
Depth of skull at glenoid surfac 058 
SB CO OE OOTY, ORCUUS a UMBILRL LY ine, Anciete Vita) Heir eaWod 
s«  ¢* mandible at-condyle...... NCS ey ay rah INE O75 
LS Aa fe FF COLO OL ios 4iraei 9) eieuiiinee via eee ea eral .083 
a ie “« posterior edge of m. iii, ......+. .042 
Depth mandible at middle of m. ii......... Lend shee ae 
fanteroposterior. .......+.. nee 
Diameters superior m. ii ; 
UETAMSVCLEGH cp sev baie ee fate ei Ono 
anteroposterior. 6.6.6.6. een O00 
Diameters superior m. iil | i 
{HAMSVETSC, .eccesaseeensees sOLD5 
¢ Fi A + fanteroposterior..... at anaes 015 
Diameters inferior m. ii f pon 
PYRE V OTIC) siccah ia tiene ae ae 
yy (PANtErOpPoOsterlory... 6. ccrewsy 0225 
Diameters inferior m. ili : 
Ute VERSO Ay eyaiicun eel see AOL 
A second specimen of this species consists of the occipital, pariétal, and 
part of the frontal regions, with the right maxillary bone, and fragments 
of the left maxillary, of the mandible, etc. The latter demonstrates the 
position of the infraorbital foramen to be above the anterior border of the 
fourth superior premolar. The middle line of the occiput presents a keel 
on its superior half. The basioccipital bone between the paroccipital pro- 
cess is expanded laterally, and is without median angle or groove. Between 
the bulle it is compressed, and its middle line forms a narrow truncation. 
Opposite the posterior third of the bulla, this surface ascends at an angle, 
and gradually widening, spreads into the general flattened convex inferior 
face of the sphenoid. The anterior part of the sagittal crest isa little 
better developed than in the typical specimen. The worn teeth indicate 
an old individual. The canine is large, and the first premolar has its 
roots well distinguished. The facial plate of the maxillary concave above 
second premolar. No appreciable diastema. 
