5G Proceedings of the Royal Society of Victoria. 



at the foct of the south side. A small creek runs along the 

 foot of the range." 



Specific Characters of Peripatus leuckartii. 



I have already quoted Sedgwick's definition of the species 

 — " Australasian Peripatus, with fifteen pairs of legs, an 

 iccessory tooth on the outer blade of the jaw^, and a white 

 papilla on the ventral side of the last leg of the male." 

 This author states that, after careful search, he has only been 

 able to find three minute points of real difference between 

 the Australian species (P. leuckartii) and the New Zealand 

 sj^ecies (P. novoi-zealandice) These are : — 



" (] ) The outer blades of the jaws have an accessory tooth 

 at the base of the main tooth, as in the Cape species. 



" (2) The male has a rounded white ])apilla on the ventral 

 face of the fifteenth leg, on each side of the genital opening. 

 It is in the same position with regard to the leg as the 

 corresponding structure in the Cape males. 



" (3) The pigment on the ventral surface is much less 

 conspicuous in this than in the New Zealand species, so that 

 the mottled appearance presented by the ventral surface of 

 the latter species is not found in these specimens. The 

 2)igment on the ventral surface of these specimens is much 

 more marked in the lower parts of the papilla? than elsewhere. 

 In the skin between the papilhe and at the apices of the 

 papillfe the pigment is so faint as to be hardly discernible. 

 The result is that to the naked eye the ventral surface 

 appears quite pale with coloured papillae projecting from it. 

 The predominant pigment of the ventral surface is the blue, 

 but orange is present. The hind end of the ventral surface 

 in the region of the last three legs is darker than elsewhere, in 

 consequence of the great number of the pigmented papilla?. 



" In addition to the above characters, it may be mentioned 

 that the genital papilla of the female is remarkably promi- 

 nent, and bears at its free end a longitudinally disposed slit. 

 In the male the genital papilla is fairly prominent, but its 

 aperture is wider and more rounded, resembling the same 

 structure in both sexes of the New Zealand species." 



The presence of an accessory tooth on the outer blade 

 of the jaw, and of a white papilla on the ventral surface 

 of the fifteenth leg of the male ; * and the prominence of the 



* I have only seen one small male specimen ; which I judge to be a male 

 from the presence of the white papilla, as mentioned, and the less jjiomineut 

 genital papilla {vide description of specimen /). 



