ALIST OFTHE REIZOPODA 



FOtJND IN THE 



VICINITY OF ALBANY, 3ST. Y. 



In the present list I have admitted no species of which I was uncer- 

 tain or on any ground but that of actual observation. My thanks are 

 due to Prof. Joseph Leidy for his corrections to my manuscript. 



D. N. De TARE. 



LIST OF SPECIES. 

 Amceba, Ehrh. 



A. proteus, Pall. 



This is very common, rather under the average size, but seems 

 very active. Localities, Black-rock pond, Water-supply. 

 A. verrucosa, Ehrh. 



Not common and I have seen specimens from but one locality. 

 Locality, Black-rock pond. 

 A. radiosa, Ehrh. 



Common in all stages. Localities, Island creek, Black-rock 

 pond. 

 A. villosa, Wallich. 



Rarely seen. Locality, Black-rock pond . 

 Ouramceba, Leidy. 

 0. vorax, Leidy. 



Rare, movement very slow. Locality, Mill-pond (Kenwood). 

 0. botulicauda, Leidy. 



Very rare, only a single specimen. Water-supply. 

 Difflugia, Le Olerc. 

 D. globulosa, Duj. 



Common in many localities. Varies greatly in size but is 

 quite constant in shape. 

 D. pyriformis, Ptery. 



Our most common species. I have seen varieties 1, 2, 3 and 

 4, as given by Leidy, but have not found the forms con- 

 necting this species with glohulosa. 



