552 ON TWO NEW SPECIES OP MARSUPIALS FROM DERBY, N.W.A.^ 



Antechinus (Podabrus) froggatti, sp. nov. 



Tail thickened at the base, spindle-formed, gradually tapering 

 to the tip. Total length to the root of the tail from the snout, 

 3 inches ; from the snout to eye, 0'5 inch ; from tip of snout to 

 the ear, 0*8 inch ; length of ear 04 inch, breadth at base 

 0'3 inch; fore feet from wrist with nails, 0"3 inch; hind feet 

 with nails, 0*55 inch ; greatest diameter of tail about one 

 fourth of an inch fi'om the rump 2 inch, its entire length 

 2*7 inches ; fur dull mouse-color next the skin. 



General color above light ashy-grey pencilled with black hairs, 

 alternately banded or tipped with ashy-grey and black ; sides of 

 the head ashy tinged with brown ; forehead and a narrow triangular 

 stripe to the nose pencilled with black like the back ; hair behind 

 the ear ashy, round the base tinged with tawny rufous ; ears ashy. 

 broAvn, almost bai^e ; sides of the -body, chin, throat and all the 

 under surface white ; forearms and hands white ; hind legs ashy- 

 brown on the thighs, remainder white ; a narrow white line round 

 the margin of the mouth ; tail ashy- white, clothed to the tip with 

 short hair, and scaled as in other members of the genus ; feet 

 lielow almost covered with hair. 



Dentition. — There are two anterior incisors above, larger and 

 stronger than the three on either side of them, from which they are 

 separate, three below on either side ovate, rounded on their upper 

 edge, narrowed at their bases ; canines one on either side above and 

 below comparatively large, a space between themand the three lateral 

 incisors ; three premolars on either side above and below, rather 

 small but increasing in size towards the true molars, which are 

 four on either side above and below, the fourth or last being the 

 smallest and almost tubercular ; formula. Incisors, gZ^ ; Canines,, 

 iZi ; Premolars, sZil ; Molars, 



4—4 

 4-4' 



