INTRODUCTION. 37 



and adprcsscd; the base bluish grey, succeeded by rufous, 

 then white, and the extienic tip black. 



Adult Female. Similar in colour to the male, but of a 

 more uniform tint, in consequence of the rufous colouring of 

 the shoulders and flanks being paler, and the grizzled ap- 

 pearance of the back not so bright. 



Young. Dark grizzled grey approaching to black, parti- 

 cularly along the back. 



Adult Male. Female, 

 ft. in. ft. in. 

 Length from the nose to the tip of the tail 3 G 3 4 



of tail 1 2| 1 2 



of tarsus and toes, including the nail 5f 5| 



of arm aiul hand, including the nails G 4 



of face fro^n the tip of the nose to 



the base of the ear 4\ 4 



of ear 2] 2^ 



Notwithstanding Mr. Waterhouse's opinion that this ani- 

 mal is merely a variety of //. Derhianus, and what I have 

 said in my account of that species tending to confirm his 

 view of the subject, I have thought it best to append a copy 

 of my original description taken from the examples sent 

 home by Gilbert. Future research will determine whether 

 it be identical with the //. Derbianus or distinct. 



Habitat. Houtmanii's Abrolhos, Western Australia. 



79. rialmaturus Dama, Gould. 



IlaJmaturns Dama, Goidd in Proc. Zool. Soc. partxii. p. 32. 



Dama, aborigines of Moore's River. 



Mr. Gilbert states that this animal " is an inhabitant of the 

 dense thickets of the interior, and is so exceedingly numerous 

 that their tracks from thence to their feeding-grounds resemble 

 well-worn footpaths. Its general habits and manners resemble 

 those of the Ilabnalurus llouimanni. Mr. Johnson Drum- 

 mond informs mc that it makes no nest, but merely squats 

 in a clunq) of grass like a Hare ; that it feeds in the night 



