150 
Fig. 1. Upper view of cranium. 
Fig. 2. Under view of cranium. 
All the figures are of the natural size; the numerals and letters are explained in 
the text. 
ONS oR ow DE 
mo: 
. 10. Inner side of right mandibular ramus, mutilated. 
. 11. Under surface of symphysial end of mandible. 
. 12. Upper surface of symphysial end of mandible. 
. 13. Inner side of left tympanic of Din. casuarinus. 
PROFESSOR OWEN ON THE GENUS DINORNIS. 
PLATE XIII. 
Dinornis casuarinus. 
. Side view of skull (wanting zygomatic and palato-pterygoid arches). 
. Upper view of cranium. 
Under view of cranium. 
Upper view of premaxillary. 
Under view of premaxillary. 
. Inner side of left mandibular ramus. 
. Under view of symphysial end of mandible. 
. Upper view of symphysial end of mandible. 
Dinornis giganteus. 
Vertical longitudinal section of cranium. 
PLATE XIV. 
Dinornis gravis. 
. Side view of skull. 
. Back view of cranium. 
. Top view of cranium. 
. Base view of cranium. 
. Top view of symphysis mandibule. 
. Top view of symphysis mandibule of Dinornis crassus. 
PLATE XV. 
Dinornis ingens. 
. Side view of skull. 
. Back view of cranium. 
. Base view of skull (minus mandible). 
. Reduced side view of skull (ex Jaeger, loc. cit.). 
PLATE XVI. 
Dasornis londinensis. 
Fig. 4. Side view of cranium. 
Fig. 3. Back view of cranium. 
