564 AUSTRALIAN LAND PLANARIANS, 



a future date I propose to deal with all the described Australian 

 forms in detail, so as to, as far as possible, bring into accord the 

 work of different observers. 



The type specimens of all the species described in this paper 

 are deposited in the Australian Museum, Sydney. 



Geoplana fusco-dorsalis, n.sp. 

 (PI. xxxiv., fig. 1.) 



Ground colour of dorsal surface uniform dark grey, with a 

 narrow median line of pale grey. Anterior tip brown. Ventral 

 surface uniform rich cream colour. Eyes numerous, single row 

 round anterior tip, then very thickly grouped in about seven 

 horizontal rows extending for at least 8 to 9 mm. backwards. 

 Length of spirit specimens 50 mm. by 4 mm. at widest part. 



The peripharyngeal opening 27 mm. from anterior tip; genital 

 opening not clearly distinguishable. 



Hob. — Near Perth, Western Australia; under chips, &c. (Mr. 

 Chas. G. Hamilton). 



The above are the colours as noted from the living specimens 

 by Mr. Hamilton. In spirit they remain apparently unaltered. 



In general shape this planarian belongs to the group of which 

 G. quinquelineata, Fletch. & Hamil., may be taken as represen- 

 tative, being somewhat rounded in section and tapering gradually 

 to anterior tip and somewhat abruptly to posterior end. 



Geoplana arenicola, n.sp. 

 (PL xxxiv., fig. 2.) 



Dorsal surface : general aspect umber brown with a dark narrow 

 median line. On close inspection the surface is seen to be covered 

 very closely with umber brown dots, among which the pale brown 

 body colour shows. Anterior tip very dark brown. 



Ventral surface pale grey covered with brown dots. These 

 tend to arrange themselves in four bands. One band is on either 

 side of the median space, which is either free from dots or but 



