. VERRUCOSA, Ehrenberg, Die Tnfusionsthierchen, 1838 126, 

 Taf. VII., fig. 11 ; Leidy, F. Rhiz. N. Amer., p. 53, pi. iii., 

 figs. 1-38. This species is rather rare. I have seen speci- 

 mens from only one locality. On Sphagmim, Waterloo 



RADiosA, Ehrenberg, Infus., 1838, 128, Taf. vii., fig. 13 ; 

 Abh. Ak. Wiss. Berlin, 1830, p. 39 ; Leidy, F. Ilhiz. K 

 Amer., p, 58, pi. iv., figs. 1-18. Abundant in nearly all 

 the localities mentioned in this list. 



VILLOSA, Wallich, Ann. add Mag. Nat. Hist., 1863, xi., p. 

 287, pi. viii. Very common on dead leavesjind decaying 

 vegetable matter. The posterior villi are *f ten hidden 

 from view by the presence of foreign materials such as 

 sand, Desmids, and Diatoms. Shea's Creek, Waterloo 

 Swamps, and near Cook's River. 



Pelomyxa, Greefi: 

 PALusTRis, Greeft; Archiv. fiir Micros. Anat., 1871, x., p. 

 51, Taf. iii.-v. I found this species in abundance on float- 

 ing masses of Oscillatoi'ia, near Cook's River, and also at 

 Waterloo opposite the end of Elizabeth Street. It attains 

 large size, some specimens measuring i;;„inch in 



DiFFLUGiA, Leclerc. 



. GLOBULOSA, Dujardin, Ann. Sc. Nat., 1837, viii., 311, pi. 

 ix., figs. 1 a-b ; " Leidy, F. Rhiz. N. Amer., p. 96, pi. xv., 

 figs. 25-31, pi. xvi., figs. 1-24. Frequent on Sphagnumin 

 the Waterloo Swamp, and on Nitella in Parramatta Park. 



. PYRiFORiMis, Perty, Mittheil. Naturf. Gesells., Bern., 1848, 

 168 ; Leidy, F. Rhiz. N. Amer., p. 98, pi. x., figs. 1-5. 

 Var. D. COMPRESSA, Carter, Ann. and Mag. Nat. Hist., 

 1864, XIII., 3rd series, p. 22, pi. i., figs. 5-6 ; Leidy, F. Rhiz. 

 N. Amer., pi. xii., figs. 10-16. Frequent in Waterloo 

 Swamps, Shea's Creek, and in Parramatta Park. Var. D. 

 CORNUTA, Leidy, pi. xxii., fig. 17. Shea's Creek and in an 

 old stone quarry in Moore Park. Var. D. vas, Leidy, pi. 

 xii., figs. 2-9. Same localities as the last named. The 

 typical form appears to be rare, and T have seen only a 



ength, 



