Observations on the Australian Species of Peripatus. 59 



diamond markings are visible. The genital papilla is cream- 

 coloured, with a slight orange tinge ; and the antennae are 

 reddish towards the base, and black at the tips. 

 Length, when crawling, twenty-three millimetres. 



(e) This specimen was light coloured, and translucent in 

 appearance. 



Dorsal Surface. — There is a very strongly-marked con- 

 tinuous band down the middle, formed of a series of 

 segmentally-arranged diamond-shaped patches of pale reddish 

 yellow, edged by light, dull, indigo blue, shading off into 

 pale yellowish red, with dull indigo blue papillse. A thin 

 median light line is just visible. 



Ventral Surface. — Lighter. Pale, dull bluish, with a row 

 of pale reddish-yellow areas, one between each pair of legs. 

 A dark patch at the base of each leg continued up the leg 

 for a little distance as a thin stripe. Ventral surface of 

 legs pale reddish-yellow. The legs are planted on a darker 

 stripe of dull indigo blue. Genital papilla, orange. Antennse, 

 pale reddish-yellow, ringed witli dull indigo blue. 



Length, when crawling, twenty-two millimetres. 



(/) This was a very young specimen. It had apparentl}' 

 just died, but was in a perfectly fresh condition, when I came 

 to examine it. Its general appearance was dark. 



Dorsal Surface. — Dark, dull blackish, with a thin median 

 lighter bluish line, with brownish-red papillae so disposed as 

 to form segmentally-arranged diamond-shaped patches, one 

 over each pair of legs, as usual. 



Ventral Surface. — Dull blackish, with a tinge of indigo 

 blue ; thickly spotted with greyish-yellow papillae. There 

 is a median row of lighter, brownish-grey areas, one 

 between each pair of legs but the last. Genital papilla, 

 orange. Ventral surface of legs chiefly reddish-yellow. 

 Antennae black. 



Length, when lying still, seven millimetres. 



{g) Dorsal Surface. — General appearance almost black, 

 dull, with a slight dull reddish tinge. A very thin, light 

 median line, edged with black, is scarcely visible. Seg- 

 mentally-arranged diamond-shaped patches, one over each 

 pair of legs, are faintl}^ indicated as redder splotches, each 

 divided into two triangular lateral areas edg^ed with black. 



Ventral Surface. — General appearance light reddish, with 

 yellowish papillae. There is an elongated lighter spot 

 between each ]^air of legs but the lasb ; and there are dark 



