LEE BARKER WALTON 49 



planarians (Ann. sc. Nat. ZooL, 7 ser., pp. 145-310, 

 1894). The length is greater however, while the anterior 

 part is constricted as figured by Girard for the Newport 

 specimens. It is evident that two and possibly three 

 species were confused by Leidy under the one name. His 

 material was given to Girard and thus far it has been im- 

 possible to locate it. 



The second form occurring at Gambier is considerably 

 smaller than the preceding one as well as much lighter in 

 color. Only two examples have been found, both under 

 stones in damp woods. It seems quite distinct from any 

 of those taken by Leidy as well as the species tabulated by 

 von Graff in his excellent monograph. 



Some papers in preparation dealing with the anatomical 

 structure of the forms will probably make clear their 

 systematic position. Furthermore, it appears evident that 

 land planarians are widely distributed over the United 

 States and that by reason of their similarity to young 

 snails, they have often been overlooked by collectors. 



