On a collection of Mammals from Central and Northern Queensland. 885 



The skull. Size of the skull of the female: 



Length 141mm, breadth 75 mm, length of lower jaw 102 mm. 



The frontal crests soon meet, and form a sagittal crest. The 

 orbital margins rapidly converge, but a distinct postorbital process 

 is wanting. The foramina palatina are large and open; the height 

 of the bony bridge behind them, which is irregularly perforated by 

 small holes, is equal to the width of each foramen. The condylus of 

 the lower jaw is but slightly convex, and the glenoidal cavity al- 

 most flat. 



The teeth. The dentition normal: i h P h '»^ i (28). ** in 

 the Upper jaw is of medium size, and supplied with a central groove ; 

 i 3 is comparatively broad (also with a distinct central groove). 



The rudimentary sockets for the canines are placed further back, 

 thau the posterior margin of the foram. incis. The premolar (p"^) is 

 unusually strong and large, longer (but narrower) thau w^, and 

 corresponding to the base of m^. It is rather broad in front; its 

 worn surface is slightly raised beyond the molars. 



In the lower jaw the premolar (^ ^) is also long, longer than m^, 

 but narrower than that in the upper jaw. 



The skull of the youngis only 80 mm in length and 45 mm 

 in breadth. It has still open sutures, and none of the molars have 

 appeared. 



As in all the young, the interorbital space is relatively broad, 

 and the incisors large, i ^ and i ^ are about the same size, and 

 furnished with an irregulär groove ; i ^ is not yet visible. 



No trace of the canine is to be found. The premolar {p^) is 

 developed and in use, and is larger than the milk premolar, the form 

 of which is just like a molar. Above its anterior root, the germ of ^ ^ 

 is indicated. In the lower jaw, p ^ is also less than in the upper 

 jaw ; the germ of p ^ has its bed under the anterior root of the milk 

 premolar. 



33. JBLalmaturus dorsalis Gray 1837. 



Halmaturus dorsalis Geay, in : Chaelesw. Mag. Nat. Hist., (new ser.) vol. I, 

 p. 583 (1837). 



A. Young of C. (skin with skull). 



B. Male. Rockhampton, March 1884 (skin with skull). 



C. Female. Rockhampton, March 1884 (skin with skull). 

 Excessively numerous in the scrubs about Rockhampton, and 



doing great damage to the colonists on the pasture lands. 



