S2 
TERTIAllY VERTEBEATA OF THE FAYDM. 
The lengtli of the upper ieeth from pm. 2 to m. 3 is tlierefore about 3i'5 cm. against 
about 26 cm. in A. zitleli. The lengtli of the lower molar series is 23‘5 cm., that of 
the lower premolars 14 cm. The total length of the mandible is 73 cm., its height at 
coronoid dd'h cm.; width of the condyle 12'1 cm.; width of ascending ramus 22‘5 cm.; 
dejith of ramus behind m.3, 11‘2 cm.; length of symphysis 21‘5 cm. 
The almost complete cervical vertebra has a centrum which is very short in 
jiroportion to its other dimensions. Its measurements are : width of centrum 
18'5 cm. ; height of ditto 15’2 cm.; length of ditto 4'8 cm. The jiosterior thoracic 
and lumbar vertebrm have both lost their anterior ejiiphyses, indicating that the 
animal was comparatively young, an inference that is confirmed by the slight degree 
of wear of the third molar in both jaws. The dimensions (in centimetres) of the 
thoracic vertebra are: width of centrum 16‘2 ; height of centrum 10‘5 ; length of 
centrum without anterior e})ipby.ses 8’2; height to tip of neural spine 24+ ; width at 
transverse processes 37. The same measurements in the case of the lumbar vertebra 
are 15'6, 10‘8, 9'4, 30, 31'8. The dimensions of the enormously massive humerus 
are : width of shaft at narrowest 18 ; greatest width of distal expan.sion 34'5 ; width 
of distal articulation 23. In form this humerus (text-fig. 38) diffei’S very little from 
that of the smaller species, exce])t that the condyles are somewdiat more prominent. 
The length of the ulna is 60 cm. Its inner face is imperfect. 
Presented hy W. E. de Winton, Esq., 1903. 
M. 8462 . Back of skull and axis vertebra found in association. The dimensions (in centimetres) 
of the skull are : width above auditory opening 41 ; width of roof between temporal 
fossae 18‘5 ; width between outer angles of occipital condyles 24 + ; width of foramen 
magnum 9’5 ; height of ditto 6‘5. 
A maxilla and mandible (M. 8462 o, h) found near this skull seem to be too .small 
to belong to the same species ; thus in the maxilla the length of the molar series is 
only 17 cm., about the same as in A. zitteli. 
The dimensions (in centimetres) of the axis are : length along ventral surface to 
tip of odontoid 17'8; width of proximal end 20'3 ; width of posterior face 16. 
Presented by IF. K. de Winton, Esq., 1903. 
M. 8467 . Left femur. The dimensions (in centimetres) of this s})ecimen are : length 80 ; greatest 
width of upper end 28 ; diameter of the head 13’5 ; width of middle of shaft 16’3 ; 
greatest width of distal end 20'3 ; width of distal articulation 15'7. 
Presented by W. E. de Winton, Esq., 1903. 
As above remarked, it is probable that bones of this species may be included amongst those 
i fd'erred to A. zitteli : e. <j. the large pelvis (C. 8413) described and figured above may belong 
