38 ADDITIONAL OBSERVATIONS ON 



My original description and figure did scanty justice to the beauty of this 

 species, partly because the specimens were not so fine as those which I have since 

 obtained. 



The two specimens from Croydon were about 66 mm. in length and 4 mm. in 

 "width when crawling. The groimd colour of the dorsal surface was light, mottled 

 brown, and the paired stripes were very broad, of a dark greeny brown colour, with 

 a fine, well-defined, very dark outline on each side. One of the specimens shows a 

 fine, light-brown mottling on the ventral surface, except in the mid-ventral line, the 

 other only shows a trace of this mottling at the anterior end. 



At Fern Tree Gully, on March l-ith, 1891, a number of fine specimens were secured 

 which again showed some interesting variations in colour. The ground colour of the 

 dorsal surface was very pale, yellow brown, generally, at any rate, more or less 

 mottled, but only very slightly. The ventral surface was very pale yellow brown, 

 often slightly mottled and sometimes with two broad bands of distinct, slightly 

 mottled brown one on each side of a narrower median band of almost pure 

 white. In some specimens the three stripes on the dorsal surface were coloured 

 as in the specimens originally described and figured. The most striking variety, 

 however, is that represented in Figs. 3, 3^., PI. IV. In this specimen the ground 

 colour of the dorsal and ventral surfaces was very pale brown very slightly 

 mottled, with slight indications of a lighter median stripe on the ventral 

 surface. The two broad stripes on the dorsal surface, instead of being simply 

 brown, or purple brown as in some specimens, were of a dark brown colour with very 

 minute blue specks thickly scattered all over. Viewed as a whole these stripes 

 appeared of different tints according to the light thrown on them, but the general 

 impression was dark olive green. 



When at rest G. ado: is very broad and fiat, and the green variety closely 

 approaches G./ros/i in appearance. The broad, dark bands are, however, edged on 

 the outside with ground colour, and do not extend to the lateral margin as in G. frosti. 

 In other words, what appears as ground colour in G. frosti appears as a definite stripe 



in G. adce. 



18. Geoplana fletcheri, Dendy. 



(PI. IV., Fig. 6.) 



I have again found this species at Macedon but have not seen it from any other 

 locality, I take this opportunity of emphasising the fact that this Planarian, which 

 at first sight might easily be mistaken for one of the common yellow forms, is really 

 very distinct indeed. The much flattened ventral surface, sometimes becoming 



