182 MR. W. K. PAEKER ON TIIE STEUCTUEE AND 



PLATE XII. 



Fig. 1. Side view of skull of " Dromceus, B." ; 1^ diameter. 



Fig. 2. Basal view of skull; 1^ diameter. 



Fig. 3. Upper view of ditto ; 1^ diameter. 



Fig. 4. Side view of part of the same skull ; 3 diameters. 



Fig. 5. Part of the same preparation, shown in Plate XI. fig. 10 ; 6 diameters : si/. sym- 



plectic ; an. anterior process ; j).r. posterior process. 

 Fig. 6. End view of primordial skull of Dromceus irroratus (" C"), two months old ; 



2 diameters. 

 Fig. 7. Upper, middle, and hinder part of inferior turbinal, seen from within, of Dro- 



mcms, " D." (2 diameters). 

 Fig. 8. Ditto, the same preparation seen from the front. 

 Fig. 9. Dromceus irroratus (" D."), half-grown. Section through fullest part of inferior 



turbinal; 2 diameters. 



PLATE XIII. 



Fig. 1. Basal view of skull of '■'■Dromceus, C. ;" 1^ diameter. 



Fig. 2. Side view (external) of the same ; 1^ diameter. 



Fig. 3. The same, seen from above; IJ diameter. 



Fig. 4. Internal view of hinder part of ditto ; 1^ diameter. 



Fig. 5. Side view of ethmoid, showing part of interorbital, and part of intemasal septum ; 



IJ diameter. 

 Fig. 6. Hinder view of same ; 1| diameter. 



Fig. 7. The skull, front view, as seen from the back of the orbits ; 1| diameter. 

 Fig. 8. Front view of lacrymal; 1^ diameter. 

 Fig. 9. Proximal upper view of mandible ; 1^ diameter. 

 Fig. 10. Proximal end view of mandible ; 1^ diameter. 

 Fig. 11. Proximal part of mandible, seen from below; If diameter. 

 Fig. 12. Facial bones of Dromceus irroratus (" A."), seen from above : m.x. maxillary ; 



4 diameters. 

 Fig. 13. Side view of the same, showing both the maxillary and the oblique (proximal) 



process of the prevomer. 



PLATE XIV. 



Casuarinus Bennettii (full period). 



Fig. 1. Side view of skull ; 2 diameters. 

 Fig. 2. Lower view of skull ; 2 diameters. 

 Fig. 3. Upper view of skull ; 2 diameters. 



