Skull of Gstrelata lessont, viewed from the side. All the figures are of the 
The same, from below. 
The same, from above, 
Skull of Prion vittatus, from below. 
Vomer,—with the ascending plate, anchylosed to it, of the palatine bones, 
—of Diomedea exulans, from the side. 
The same, from above. 
Fig. 7. Left uncinate bone (“os crochu” of Reinhardt) from behind, of Thalassiarche 
Rie. £ 
natural size. 
Fig. 2. 
Fig. 3. 
Fig. 4. 
Fig. 5. 
Fig. 6. 
culminata. 
Fig. 8 
Bis eo 
Fig. 10 
Fig. 12 
Fig. 13 
Fig. 14. 
. The same of Phaebetria fuliginosa. 
: Left humerus of Majaqueus equinoctialis, from above. 
. Proximal, and fig. 11, distal extremities of the same bone, inferior surface. 
. Pelvis, seen from the side, of Mayaqueus aquinoctialis. 
. Proximal end of right tibia of Ossifraga gigantea, to show the cnemial crest. 
Hallux of Ossifraga, with its metatarsal. The single phalanx of which it 
consists is vertically bisected, to show the hollow interior. 
