214 MR. G. H. WAILES ON FRESH WATEK 



Order AMCEBINA. 



Amoeba terricola, Greeff, in Arcli. f. mikr. Anat. i. (1866) p. 300, pi. 17. 

 iigs. 1-11. 



A. verrucosa, Ehrenb. Infus. 1838, p. 126, pi. 8. fig. 11. 

 A. papyracea, Penard (10), Bd. 6, 1905, p. 201. 



Owing to the possession of a comparatively firm pellicle this species is able 

 to withstand desiccation for quite lengthy periods, and often to be identified 

 in preserved gatherings. A study of this species and its allies by Penard 

 has recently appeared (Archiv f. Protist. 1912). 



Order CONCHULINA. 



BuLLiNULA INDICA, Penard (11), p. 225, pi. 22. fig. 1. 

 Jjidinella indica, Penard (12), p. 274, pi. 14. figs. 1-4. 

 Occurs in sphagnum on Mt. Papagaio, Rio Janeiro. 

 Length about 200 yu- ; breadth about 180 /*. 



Distribution. — Peru (7) ; United Spates (16) ; Canada (11) ; Europe 

 '(17, 9, 1912) ; Australasia (11) ; India (12) ; (Seychelles (16). 



CoRYCiA ACULEATA [Greeff), Aiverinzeio (1), p. 142. 



Pseudochlamys aculeata, Greeff (5), p. 104. 

 Corycia coronata, Penard (8), p. 178. 



This rare species occurs in moss on the shore near Rio Janeiro ; the spines, 

 usually numerous (8-12), are well developed but never long. The tests 

 were of medium size. 



Diameter 90-100 /z. 



Corycia flava {Greef), Penard (8), p. 173. 



Amjjhizonella Jiava, Greeff, in Arch. f. mikr. Anat. ii. (1866) p. 329, pi. 18. fig. 19. 



In addition to tests of typical size, 80-100 (x in diameter, several large tests 

 ^vere seen, similar to those which occur in Bolivia (7) measuring from 

 120-165 fjb in diameter ; some of these were circular, others folded up ; they 

 may perhaps be Parinidina briicei, Penard (13), but the facets present on the 

 tests of that species were never distinguishable ; it is to be hoped that 

 specimens will be found in the materials collected by the Fuhrman expedition 

 that will enable Penavd to complete his description of that species and render 

 its identification more certain. 



C. FLAVA var. COKONATA (Penard). 



Corycia coronata var. simplex, Penard (8), p. 179. 



Corycia penardi, Awerinzew (1), p. 143; Scliouteden (15), p. 332, 



A few tests that belonged to this variety were found in moss ; the 

 projecting ring around the crown of the test is often only rudimentary and 



