REVISION OF AUSTRALIAN JERBOA MICE. 
Ascopharynx, for pouched forms ; in a later paper (9) he 
described the gular pouch as a little skin pocket, lined by thick 
hairs, which is situated on the ventral surface of the neck and 
opens forwards. 
Examination of the National Museum material shows that 
the gular pouch is lined with specialised solid hair quite unlike 
the normal body hair (fig. 3). In some of the pouchless forms 
a. 1. 
Fig. 3. Hair of N. cervinus : a from gular glandular area, 
b from chest. 
the same part of the gular area is clothed with a patch of similar 
solid hairs, indicating a like glandular structure; this is con- 
firmed by G. Bourne’s investigation of the microscopic structure 
published in this Memoir. The expression “gular pouch” has 
therefore been discarded in this paper in favour of “gular 
glandular area.” All species with a gular glandular area are 
placed in the genus Notomys. 
Two species examined have no gular glandular area, but 
the male (and not the female) has an oval, slightly swollen 
pre-sternal gland between the fore-legs. No trace of a pre- 
sternal gland was found in any specimen having a gular 
glandular area. All species with a pre-sternal gland have been 
placed in the genus Podanomalus. 
The fact that Thomas and Waite neither investigated the 
structure of the gular hair nor, apparently, discovered the chest- 
gland of longicaudatus , causes rather an involved situation in 
synonomy ; it is clear, however, that Waite’s Podanomalus has 
priority. 
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