Ohservatio)is on the Australian Species of Peripatus. 61 



Ventral Surface. — Grey, with pale yellow papillje, and, 

 perhaps, a tinge of bluish. A median row of yellowish 

 spots as usual, and also a darker patch at the base of each 

 leg, continued up the leg as a thin dark line. The ventral 

 surface of the legs is pale yellowish towards the apex, and 

 the genital papilla pale orange. 



Length, when crawling, twenty-four millimetres. 



(I) Dorsal Surface. — As in k, with identical markings. 

 Ventral Surface. — Paler, with same markings as in k, but 

 more greenish-blue. Genital papilla, cream-coloured. 

 Length, when lying still (dead?), ten millimetres. 



(m) This specimen was killed, apparently by having the 

 secretion from the oral papillae of another specimen ejected 

 over it. 



Dorsal Surface. — General appearance black, with a thin 

 median light line, as usual. The diamond-shaped patches are 

 represented, as in the last described specimens, by a row of 

 light red spots down each side. 



Ventral Surface. — Paler. Blackish, with pale yellow 

 papillae scattered over it. A median row of lighter yellowish 

 spots present as usual. 



Length (dead) seven millimetres. 



(n) Dorsal Surface. — Black, with a median thin light 

 line and a row of red spots down each side, one over each 

 leg. 



Ventral Surface. — Black, spotted with pale yellow papillaj. 

 A median row of lighter grey patches, one between each pair 

 of legs. Ventral surfaces of legs yellowish -grey. Genital 

 papilla, yellowish-grey. 



Length, when lying still (dead ?), seven millimetres. 



From these descriptions, it appears that the following are 

 more or less constant characters of the species with regard 

 to colour and markings: — 



(1) The predominant colours are red and indigo blue — the 

 former passing into yellow, and the latter into black 

 in some specimens. 



(2) There is a thin median light line down the doi-sal 

 surface. 



(8) The characteristic pattern on the remainder of the 

 dorsal surface is a series of segmentally-arranged 

 diamond-shaped patches, in which the red colour is 



