24 
IIORX EXPEDITION-MAMMALIA. 
The above will serve to define the species. It will he seen that in one 
important point, viz., the absence of the five striated pads upon the sole of the 
hind-foot, Ph. cristicauda differs from the other species referred to the "enus ; and 
if this character be insisted upon as essential, then it must be removed from the 
genus. On the other hand, the dentition, general form of the body, and the 
characters of the skull (especially in respect to the nasal bones and the swollen 
bullfe) are distinctly those of a Phascologale rather than a ,Sminthopsis. Ph. 
cristicauda may be best regarded perhaps as a form intermediate between the 
genera Phascologale and 8minthopsis, and as showing in its dentition, together 
with such other forms as Ph. apicalis and Dasyuroides byrnei, an approach towards 
the genus Dasyurus. 
The following are the dimensions of twenty of the specimens in my collection, 
which will serve to give some idea of the individual variations in this respect:— 
— 
Head and 
Body. 
Tail. 
Ear. 
Ilind-foot. 
Specimen a, mature 
? 
125 
93 
14 
26 
Siiecimen b, mature 
$ 
130 
85 
15-5 
28 
Specimen r, mature 
? 
130 
8o 
14 
20 
Specimen d, mature 
$ 
130 
80 
15 
26 
Specimen e, mature 
? 
135 
84 
17 
27 
Specimen /, mature 
$ 
— 
88 
— 
27 
Specimen g, mature 
? 
135 
88 
18 ? 
26 
Specimen h, small immature 
c? 
91 
07 
15 
22-5 
Specimen i, mature 
? 
135 
80 
15 
20 
Specimen k, immature 
$ 
8G 
51 
12 
20 5 
Specimen 1, mature 
c? 
144 
93 
15 
28 
Specimen ni, mature 
d 
130 
83 
14 
27 
Specimen not quite mature 
? 
128 
89 
14-5 
27 
Specimen o, not quite mature 
2 
132 
85 
14-7 
25 
Specimen p, mature 
2 
— 
— 
— 
20-5 
Specimen q, mature 
2 
138 
80 
13-5 
25 
Siiecimen r, mature 
S' 
148 
89 
15-5 
20 
Specimen s, mature 
2 
170 
98 
10 
30-5 
Specimen t, mature 
S 
220 
120 
18 
35 
Specimen u, mature 
2 
168 
no 
17 
30-5 
The width of the foot in specimen d is 7’2 mm., in specimen t is 10 mm., and in specimen u 
is 8 mm. 
