A.RT. VII. — Short Descripiions of New Land Plaiiariuns. 

 By AuTHUii Dendy, D.Sc, F.L.S. 



[Read August liJ, 1891.] 



The object of the present communication, is to describe as 

 briefly as possible some new species and varieties of land 

 |)lanarians which have come to hand since I read my last 

 paper on the subject before this Society* The specimens 

 described were collected by Professor Spencer, Messrs. 

 C. French, F.L.S., H. Grayson, and C. C. Brittlebank, to all 

 of whom I wish to express my indebtedness. The most 

 interesting of the new species is Ehynchodemus simulans, 

 collected by Mr. Brittlebank at Myrniong, near Bacchus 

 Marsh, Victoria. With the exception of the single specimen 

 of Rhi/)ichodemus victoricv obtained by Professor Spencer in 

 the Croajingolong district, not very far from the New South 

 Wales border, and described b}- me in a previous communi- 

 cation,-f- this is the first time the genus Rliynchodemus has 

 been met with in Victoria. I hope on a future occasion to 

 be able to publish figures of all the new species and 

 varieties. 



Geoplana ventrolineata, n. sp. 



Body, when crawling, almost circular in section, ta})ering 

 gradually at either extremity ; length about 23 mm. ; 

 greatest breadth little over 1 mm. Eyes arranged as 

 usual, and continued for a long way down the body in the 

 light lateral line. Peripharyngeal aperture (in spirit) at 

 about the junction of the middle and posterior thirds of the 

 body ; genital aperture somewhat nearer to the peripharyn- 

 geal aperture than to the jjosterior end. 



Dorsal surface very dark grey, almost black, with two 

 very narrow lines of light greyish, one on either side of a 

 median dark grey line of about equal width. There are two 

 similar narrow lines of pale grey, one on either side of the 

 body, just visible from the dorsal surface. 



Ventral surface strongl}- marked with alternate light and 

 dark longitudinal bands, arranged as follows: — In the middle 



* " Transactions of the Royal Society of Victoria," June 11, 1891. 

 t " Transactions of the Royal Society of Victoria," May 8, 1890. 



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