318 FRESHWATER RHIZOPODS OF NORTH AMERICA. 



Stein, Friedrich. 



Die Infusionsthiere auf ihre Entwickelungsgeschichte untersucht. Leipzig, 1854. 

 Actinophrys sol, Ehr., 140, 151, 164, 25S, Taf. iv, Fig. 26-28. = An Acineta. 

 Actinophrijs Eichhornii, Ehr., 148, 151, 161, 163. = Actinospilerium eichhornii. 

 Actinophrys oeulaia, 151, 157, Taf. v, Fig. 25-28. = Actinophrys sol in conjugation f 



Ta«CBm, J. G. 



On Free-swimming Amoebae. Monthly Microscopical Journal. Transactions of 

 the Royal Microscopical Society, London, 18C9, i, 352, pi. xvii. 



Amoeba princcps, Amoeba Umax, Amoeba diffluens. 

 Amoeba gitliula, Amoeba porrecta, Amoeba villosa. 

 Amoeba with a flagelluni, Group B, pi. xvii. 



Notes on New Infusoria. Ibidem, 1870, iv, 313, pi. lxviii. 



Difflugia ligata, Fig. 1. = Hyalosphenia cuneata. 

 Conjugation of Amoeba. Ibidem, 1871, vi, 275. 



Amceba villosa. 

 A phase of Actinophryan Life. Ibidem, 1872, vii, 1G9, pi. xv. 



Actinophrys sol. = Heteropiirys ? 



Wallich, «. C. 



On an undescribed Indigenous Form of Amceba. The Annals and Magazine of 

 Natural History, London, 1803, xi, 2S7, pi. viii. 

 = Amceba villosa. 



Further Observations on an undescribed indigenous Amoeba, with notices on 

 remarkable forms of Actinophrys and Difflugia. Ibidem, 365, pi. ix. 

 Amceba villosa. 



Further Observations on Amceba villosa and other indigenous Rhizopods. Ibidem, 

 434, pi. x. 



Amceba villosa, figs. 5-10. 



Amceba radiosa, 443, Amceba princeps (vai. radiosa), 453, figs. 1-3. =Amceba proteus? 



Actinophrys Eichhornii, 444, 453, figs. 1-3. = Actinospilerium eichhornii. 



Actinophrys sol, 446, 453, fig. 4. 



Difflugia proteiformis (var. septifcra), 453, fig. 12. = Difflugia spiralis. 



Difflugia proteiformia (var. acuminata), 453, fig. 13. = Difflugia acuminata. 



Arcella vulgaris, 453, fig. 14. 



On the Value of the Distinctive Characters in Amceba. Ibidem, 18C3, xii, 111. 

 Further Observations on the Distinctive Characters and Reproductive Phenomeua 

 of the Amoeban Rhizopods. Ibidem, 329, 448, pi. viii. 



Difflugia pyriformis (var. symmetrica), 408, 467, fig. 16. =Quadrula symmetrica. 

 Amceba villosa, figs, of pi. viii, except 16, and probably 10, which looks like Amceba 

 verrucosa. 



On the Process of Mineral Deposit in the Rhizopods and Sponges as affording a 



Distinctive Character. Ibidem, 18C4, xiii, 72. 

 On the Extent and some of the Principal Causes of Structural Variation among 

 the Diffliigian Rhizopods. Ibidem, 215, pi. xv, xvi. 

 Classification of forms, page 240, as follows: 

 Species 1. Difflugia proteiformia (Ehr.). 

 Subspecies 1. V. mitriformia (WaL). 

 Variety a. D. acuminata (Ehr.). 

 b. D. spiralis (Leclerc). 

 C. D. pyriformis (Perty). 

 d. D. lagctdformis (Wal ). 



