BY THOS. STEEL. 621 



dorsal line and being of similar shape is by no means sufficient 

 reason for considering them as identical; indeed many of the 

 described species of land planarians from all parts of the world 

 differ less from one another than do the forms under considera- 

 tion. 



As I am satisfied that Dendy's description of the Victorian 

 G. Lucasi cannot be made to cover the Tasmanian species, I have 

 deemed it advisable to rename the latter, of which the following 

 is a description : — - 



Dorsal surface to the eye appears of a uniform dark purplish- 

 brown colour, with a narrow median very dark brown line just dis- 

 tinguishable, extending from end to end in some individuals but 

 disappearing about midway between the ends in others. Under 

 the lens the dark brown of the surface is resolved into very 

 numerous inosculating stipplings, mainly longitudinal, on a 

 groundcolour of somewhat paler brown, and extending uniformly 

 over the whole surface. Ventral surface uniform pale brown with 

 a pinkish tinge. 



The body is flattened and leaf-shaped, about equal width for 

 the greater part, curving abruptly to a blunt point posteriorly, 

 and produced at anterior end to a pointed tip. 



Eyes large and conspicuous, in a single row round the anterior 

 tip and continued without any grouping, in a row for a few mm. 

 down the sides. 



Length in spirit 43 mm. by 7 mm. broad. Peripharyngeal 

 aperture 25 and genital opening 32 mm. from anterior tip. An 

 example when crawling was about 57 mm. in length by 8 mm. 

 wide, and when contracted at rest became shortened considerably 

 and from 10 to 12 mm. wide. 



Hah. — Table Cape, Tasmania (Mr. H. Stuart Dove). 



In shape and general character this species seems to me to be 

 related to G. Mortoni, Dendy, but the markings on both surfaces 

 of the latter are very distinctive. 



I have pleasure in associating the name of Mr. Dove with this 

 handsome species in recognition of his excelleiit work in the col- 

 lection of land planarians in Tasmania. 



