HORN EXPEDITION—MAMMALIA. 
45 
II 
? 
12 
$ 
13 
$ 
<? 
15 
? 
16 
$ 
17 
$ 
18 
? 
19 
% 
20 
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Length from snout to 
tip of tail 
145 
145 
143 
155 
155 
180 
152 
152 
148 
170 
Length from anus to 
tij) of tail 
22 
24 
22 
24 
22 
21 
26 
23 
23-5 
26 
As Dr. Stirling stated, there is no trace of an external scrotum. Mr. Benliain, 
in notes furnished to Dr. Stirling, said that “ the testes of a male are like those of 
a cat,” hut in none of the numerous male specimens which we have now examined 
can any external trace of the testes be detected. Tlie only possible explanation of 
Mr. Benham’s note is that they may be more distinguishable externally just at 
the breeding season. 
Colour .—The colour varies considerably from a light almost silvery tint to a 
rich chestnut-brown, and an iridescent effect is often noticeable, especially in the 
live animal. 
Fur .—This is long, soft and silky, and consists of (1) very tine hairs 
equivalent to the under-fur of other marsupials, and (2) much fewer, larger and 
somewhat flattened hairs. 
The tine hairs may be perfectly smooth and thread-like, or, not infrequently, 
they may have serrated edges. The large hairs are of no greater length than the tine 
ones, and their presence is not noticed, except the fur be examined with a lens, 
when they can be distinguished by their usually somewhat darker colour and 
coarser appearance. Each has a long shaft which swells out into a flattened more 
expanded portion, and then this suddenly contracts to form a very short pointed 
free end. The broad flattened out part occupies perhaps half the length of the 
hair. 
The most interesting point, however, is concerned with their arrangement. 
Sections through the skin at once show that a bunch of tine hairs perhaps, as 
many as twenty in number, issues from a common follicular opening on the surface, 
and that to each group of tine hairs corresponds a single large flattened one which 
passes out through the same opening, and is always placed behind the small hairs. 
It is especially interesting to notice this in connection with the descriptions 
given by Leydig, Poulton and others of the arrangement of the hairs in 
