116 ProceediAigs of fJie Royal Society of Victoria. 



Its small size in the present species leads me to direct attention 

 more particularly to it. Covering the root of the long and curved 

 incisor, it is to be found on the outer side of the mandible 

 approaching the sigmoid notch. It may be very prominent and 

 )-each quite to the notch as in Z'. longicaiidaiiis (see I.e. fig. 2. a.) 

 or so low as to scarcely protrude above the general level as in 

 C. apicalis (tig. I. a.). 



Teeth. Incisors rather slight, molars of dark horn color of 

 ordinary type, but attention may be drawn to the pattern 

 assumed by the wearing down of the third molar. 



DiMICXSIOXS. 



Head and body . . . . 169-0 



Tail - 236-0 



Length of head - - - - 48-4 



Muzzle to ear - - - - - 38-5 



Ear - - - - - - 31-0 



Forearm and hand - - - - 44-0 



Hind foot - - - . . 40-8 



Heel to front of last foot pad - - 21-4 



Last foot pad - - - - - 5-0 



Skull. 



(Greatest length - - - - 41-4 



Basal length - - - - - 35-3 



Greatest bi-eadth - _ - - 20-7 



Nasals, length ----- 14-6 



Nasals, greatest breadth - - - 4-7 



Interorbital breadth - - - 5-2 



Interparietal length - - - - 5-6 



Interparietal breadth - - - 8-8 



Brain-case, breadth - - - - 16-9 



Anterior zygoma root - . - - 4-S 



Diastema - - - - - 10-6 



Palate, length - - - - - 21-4 



Anterior palatina foramina - - 7-5 



Upper molars, length - - - 7-4 



Lower molars, length - - - 7-7 



Condyle to incisor tip - - - 27-3 



Coronoid tip to angle - - - 11 "5 



Habitat, Alice Springs, Central Australia. 



