Mem. Nat. Mus. Vict., 13, 1943. 
A NEW SPECIES OF PAUROPUS FROM VICTORIA 
By O. W. Tiegs, D.Sc., 
Associate-Professor of Zoology, University of Melbourne 
Although Pauropoda are of widespread occurrence in Australia, 
they have not attracted much attention from systematists, probably 
owing to their small size and obscure habitat. N early thirty vears 
ago Harrison (2) described five species, including a member of 
the remarkable genus Eurypauropus, from the neighbourhood of 
Sydney; since then the list of Australian species has not, as far 
as I am aware, been added to. 
The species which is described in the present paper is one that 
I have obtained in large numbers in the damp mountainous forest 
country at Belgrave in Victoria, and I am using it at present as 
material for the study of the embryology of these peculiar arthro- 
pods. As it seems to be distinct from any other form hitherto 
recorded, a taxonomic description is needed. 
In the following account I have fairly closely followed the 
method of description worked out by Hansen (1) ; for when types 
are not accessible, comparison with his species can be made only 
on the basis of those characters to which he specifically refers. 
The nomenclature adopted is also based on that of Hansen. 
Class PAUROPODA Lubbock, 1868 
Order HETEROGNATHA Saussere et Humbert, 1872 
Family PAUROPODIDAE Lubbock, 1868 
Genus PAUROPUS Lubbock, 1868 
Pauropus silvaticus sp. nov 
Size. The largest specimens encountered measured 1:2 mm. in length, the smallest 
with full number of legs, about 0-86 mm.; the average length based on a measure- 
ment of twelve individuals, is 0°97 mm. Average breadth about 0:23 mm, 
Head (fig. 1). The distance between the “ocular areas” on the dorsal surface 
of the head is about the same as the length of the areas. 
The head is itself completely free from pubescence; its setae are, however, all 
covered with a very delicate, just perceptible pubescence. 
These setae are, as usual, disposed in four transverse rows: (i) An anterior, 
mainly pre-antennal, row of setae, of which one lies unpaired in the median line. 
Five of these setae are clavate, measuring 02 mm. in length; but the two most 
lateral setae are delicate and cylindrical, and are not longer than the clavate setae. 
(ii) The second row is post-antennal, and comprises eight setae, of which six are 
clavate and are similar to those of the first row, while the two most lateral setae are 
cylindrical, and do not exceed the clavate setae in length. This row ends just in 
front of the inner angles of the “ocular areas.” (iii) The third row consists of 
six widely spaced setae, of which four are clavate, while the two most lateral, 
151 
N 
