90 Proceedings of the Royal Society of Victoria. 



from which the animal may be easily recognised. They say, 

 " undersurface greyish in centre, yellowish towards the 

 margins. Above these is a narrow median dorsal line of 

 pale olive brown, bounded on either side by a very fine dark 

 line, external to which is a broader band of a slightly darker 

 brown, and this is boarded externally by a very dark brown 

 line, which gradually merges into a rather broad band of 

 very dark brown, which fades gradually towards its outer 

 margin." 



In Fig. 10, the animal is represented for the first time in 

 the colours of life, and may be described as follows : — The 

 body colour is yellow (the tint being that known as Naples 

 yellow), varying in intensity in different specimens, and 

 being always lighter on tlie ventral than the dorsal surface. 

 On the dorsal surface are, typically, four darker bands of 

 colour. Two of these lie one on either side of the median 

 line, enclosing between them a narrow strip of body colour ; 

 their internal edges are sharply marked, their external ones 

 are less defined. External to the dark lines is a band of 

 body colour, some three times the width of the median stripe, 

 and covered with speckles of brown, which seem to spread 

 out from the dark bands above mentioned, and to gradually 

 diminish in number towards the external borders. Extei'nal 

 to these light bands lies, on either side, a dark brown band, 

 somewhat wider than the former. Each may be divided 

 into three portions— an upper, median, and lower. The 

 upper has its internal edge sharply marked, and is always 

 very dark ; it passes more or less abruptly into the median 

 part, which has a characteristic speckled appearance, and is 

 bounded externally by the third and lower portion, made 

 up of a somewhat narrow series of dark brown speckles. 

 This lowest part varies somewhat in definition. The four 

 dark bands are always present, but in addition to these, there 

 may be present on either side, just where the dorsal merges 

 into the ventral surface, a linear row of brown speckles, 

 tending to form a dark line along each side. The brown of 

 the bands varies from vand3'ke to umber. 



It is of interest to note that the land planarians, so far as 

 yet known in Victoria, may, with regard to colour markings, 

 be clearly divided into three main groups. 'J'he first of these 

 is characterised by a uniform light tint all over the body, 

 varying in difierent localities from white to orange, or a 

 warm shade of grey. This is represented by the common 

 form G. alba, which is found apparently in all parts of 



