160 MR. G. H. WAILES ON FRESHWATER RHIZOPODA 



IItjglypra CILIATA, ]^hre7iberc[. , 



Not rare. Length 60-70 yti. . . , 



E. COMPRESS A, Carter. 



A few seen. Length about 70 yu,. 



E. CRISTATA, Leidy. 



Not uncommon. Length 40-65 yu,. 



E. FILIFERA, Penard. 

 Rare. Length 65 /a. 



E. LiEViS, Perty. 



Not uncommon. Length 22-40/1,. 



E. ROTUNDA, Waihs. (Proc. Roy. Irish Acad. vol. xxxi. pt. 75 (1911).) 

 Only one seen ; length 55 /x. 



E. STRiGOSA, Le'idy. 

 Common. Length GO-70 yu.. 



Var. MUSCORUM, Wailes. 



Of average size : length 70 yu, ; breadth 50 yu, ; aperture 22 yu-. 



Genus Sphenoderia. 



Sphenoderia dentata, Penard. 

 Not common. Length 48-50 yu,. 



Genus Trinema. 



Trinema complanatum, Penard. 

 Not common. Length about 40 ^t. 



T. enchelys, Leidy. 

 Rare. Length 35-70 yu,. 



T. lineare, Penard. 



Numerous but usually small : length 18-23 yu. A few abnormal indi- 

 viduals were observed, possessing long and narrow tests with large apertures ; 

 length 35-45 y ; breadth 12-14 y ; aperture 6-7 y. 



