vi.] 



IN VARIOUS MAMMALS. 



89 



Marsupialia. 



Cervic Thorac. Lumb. 



Perameles obesula 7 13 6 



Myrmecobius fasciatus 7 12 7 



Phascogale flavipes 7 13 6 



Dasyurus maculatus 7 13 6 



viverrinus 7 13 6 



ursinus 7 13 6 



Thylacinus cynocephalus 7 13 6 



Didelphys virginiana 7 13 6 



azaree 7 13 6 



Chiron ectes varicgatus 7 13 6 



MONOTREMATA. 



Echidna aculeata 7 16 



* bruijni 7 16 4 



Ornithorhynchus anatinus ... 7 17 2 



Sacral. 



3 

 3 

 4 

 3 

 3 

 3 



2 

 2 

 2 

 2 



4 



3 

 3 



Caudal. 



24 

 10 + 



19 + 



13 + 

 16 + 



23 

 26 



29 

 29 



ii 



10 

 20 



