36 Proceedings of ike Royal Society of Victoria. 



line a rather narrow band of light yellowish grey ; on each 

 side of this, a band of about twice the width of much darker 

 brownish, or almost purplish, grey ; ovitside each of these 

 again, a rather narrow band of light yellowish grey ; then a 

 narrow dark band of brownish grey and then the light 

 lateral line already mentioned. 



Anterior extremity nearly black. 



This beautiful and well marked little planarian was found 

 in abundance by Mr. H. Grayson in Brunning's Nursery 

 Garden, St. Kilda, Victoria, in July and August 1891. 

 Probably it was introduced with plants from some othei 

 locality, but it is impossible to say whence. It is an 

 interesting fact that Mr. Graj^son also found a number of 

 specimens of the blue-tipped variety of G. coeridea in the 

 same locality ; the history of this variety, also probably 

 introduced, is given in my last paper on the subject. 



Geoplana dubia, n. sp. 



Body shaped as in G. hoggil and its allies. Length, 

 when crawling, about 50 mm. ; greatest breadth, 3 mm. 

 Eyes arranged as usual, distinct and numerous. Peri- 

 pharyngeal aperture (in spirit) well behind the middle of the 

 body, but in front of the junction of the middle and posterior 

 thirds ; genital aperture doubtful. 



The ground colour of the dor.sal surface is rather pale 

 yellow, with a tinge of green, especially in the middle line. 

 Only two stripes are present, corresponding in position and 

 appearance to the two inner stripes of G. hoggii ; they are 

 broad, deep blue-green in colour-, and situate one on either 

 side of a somewhat narrowei" band of ground colour. 



The ventral surface is pale yellow, and the anterior 

 extremity brown. 



This form closely resembles Geoplana hoggil witliout the 

 dark outer stripes, and may be only a variety of that s})ecies 

 (or of G. sulphurea). It is readily distinguishable from 

 G. 7n'mahoni by the dark stripes being of a green colour 

 and much closer together. One s])ecimen only was obtained 

 by Professoi' Spencer and Mr. 0. French near Narrewarren, 

 South Gippsland, Victoria, in Jul}'^ 1891. 



Geoplana alba, var. roseolineata, nov. 



This very beautiful variety resembles small specimens of 

 the typical G. alba, with the addition of two narrow bright 



