188 



sphenoid where that cavity is "indicated only by the internal orifices of 

 the entocarotid canals" in Thylacinus *. The chiasmal fossa is shown at o : 

 the precondylar foramen atp.c. 

 The symbols, letters, and numerals are explained in the text. 



List of Woodcuts. 



Fig. 1. Laniaries of Potamogale, front view. 

 Fig. 2. Laniaries of Urotrichus, front view. 



Fig. 3. Mandible and upper and lower laniaries, side view, Potamogale. 

 Fig. 4. Mandible and teeth of Thylacoleo, as restored by Professor Flower, front view, 

 one-third nat. size. 



Fig. 5. Mandible and teeth of Phascolarctos, front view, three-fourths nat. size, after 

 Professor Flower. 



Fig. 6. Mandible and teeth of Phascolarctos, side view, half nat. size : grinding-surface 



of molars, nat. size, after nature. 

 Fig. 7. Skull of Thjlacoleo camifex, as reduced and restored by Professor Flower. 

 Fig. 8. Mandible of Thylacoleo camifex, one-fourth nat. size, after nature. 

 Fig. 9. Mandible of Aye-aye, with incisor exposed, nat. size. 

 Fig. 10. Mandible of Plagiaulax Falconeri, Ow., magnified 4 diameters. 

 Fig. 11. Mandible of Thylacinus cynocephalus, after nature. 

 Fig. 12. Mandible of Sarcophilus ur sinus, after nature. 



Fig. 13. Skull of Thylacoleo camifex, as reduced and restored by Mr. Krefft. 

 Fig. 14. (Repetition of fig. 8.) 

 Fig. 15. (Repetition of fig. 10.) 



Fig. 16. Mandible and teeth, Dendrolagus dorcocephalus. 



Fig. 17. Mandible and teeth, Hypsiprymnus minor. 



Fig. 18. Mandible and teeth, Bettongia penicillata. 



Fig. 19. Mandible and teeth, Phalangista Cookii. 



Fig. 20. Mandible and teeth, recent and fossil carnivores, nat. size. 



* Descriptive Catalogue of the Osteological Series, Mus. Coll. Chir., ifcc., 4to, p. 349. 



