Parxer.—On Notornis mantelli. 257 
DESCRIPTION OF PLATES XIX—XXL 
Puate XIX. 
The Te Anau skeleton of Notornis mantelli, from the ventral aspect (4 nat. size). 
” ” from the right side ( ” ” )- 
(Figs. 1 and 2 Soba shucikcaplant by Burton Bros., Dunedin.) 
Te XX. 
Fig. 3. Comparative views of the trunk skeleton of 
hg. 1 
Fig. 2 
All drawn % the same absolute length. 
= line drawn through anterior boundary of trunk. 
osteri 
ae ae po r fe 
v. eae anterior end of pelvis of N otornis. 
See acetabulum of Notornis. 
ac, Ben ie k, keel of sternum. 
a. tr, anti-trochanter. m.x.p, middle xiphoid process. 
cl, clavicle. ob, obturator notch. 
er, coracoid. pu, pubis. 
cv.r, last cervical rib. sc, scapula. 
é..p, external xiphoid process. th.r.1, first thoracic rib. 
il, ilium (pre-acetabular portion). th.r.8 (th.r.9 in B.), last thoracic rib. 
i’, ,, (post-acetabular portion). uc.p, uncinate process. 
il. se, ilio-sciatic foramen. ve, vertebral column. 
is, ischium. 
Puare XXI. 
Fig. 4. Outing ot: sternum and coracoids ot Notornis on oe, i ee 
na thoade aft Parn! Tented 
the right (treme line). For ae b under 4a. 
Fig. 4a. utgas of right half of sternum and coracoids of Notornis (even line) and 
Tribonyz (dotted line). 
All drawn to a common length of sternum, and viewed from the ventral aspect. 
zy, long axis of sternum. 
er, coracoid. k, k’, kb", k”, anterior end of keel of sternum. 
ep, costal process (Notornis). e.z.p., e.x.p’., e.x.p"., e.z.p”., external xiphoid 
process. 
a »»  (Ocydromus). eo m.z.p”., middle xiphoid 
en »  (Porphyrio). 1, Pi or manubrium (Porphyrio). 
ep” 2 ” (v ribonyz). vs 7 Lh ™” (7 ribonyz). 
Fig. 5. Transverse sections of sternum of 
A. 
