BIBLIOGRAPHY OF FRESH- WATER RHIZOPODS. 319 



Wallich, G. C. 



Subspecies 2. D. globularis (Duj.). 

 Variety o. D. tubcrculata (Wal.). 

 D. aculeata (Ehr.). 

 D. corona (Wal.). 

 Subspecies 3. D. Arcella (Ehr.). 



4. I). marsvpiformis (Wal.). 

 Variety a. D. cassis (Wal. ). 

 Species 2. Euglypha alreolata (Duj.). 



Subspecies E. Enchelys= D. Enchelys (Ehr.) = Trincma acinus (Duj.). 

 Species 3. Euglypha margaritacea = Cyphoderia margaritacea (Schlum.). 

 Variety? E. baltiea = Lagynis baltica (Schultze). 

 Difflugia globularis, figs. 1, 2, 17, 21. =Difflugia globulosa. 

 D. marsupiformis, figs. 3-5. = Difflugia constricta. 



D. cassis, fig. 6. = DIFFLUGIA CONSTRICTA. 



D. mitriformis, figs. 7, 8. = Difflugia acuminata ? 



D. piriformis, figs. 9, 10 ; also fig. 12, specimen of the mitriforni series. 



D. acuminata, fig. 11 ; also figs. 12, 12o, 12ft, specimens of the acuminate seriea. 



Oblong variety, figs. 13, 14. = D. globulosa. 



Difflugia lageiiiformis, figs. 15, 16. DlFFLUGIA URCEOLATA. 



D. tuberculata, fig. 18. =D. globulosa? 



D. coron*, figs. 19, 20. 



D. aculeata, plain variety, fig. 22. = Centropyxis ecornis. 



D. aculeata, fig. 23. = Centropyxis aculeata. 



D. spiralis, figs. 24, 25. 



D. symmetrica, fig. 26. = Quadrula symmetrica. 

 Transition forms, figs. 27-33. =Nebela collaris. 

 Difflugia Arcella, tigs. 34-38. =ARCELLA VULGARIS, 



Two Difflugias in conjugation, fig. 39. =D. pyriformis and D. globulosa. 



Difflugia, fig. 40. = DlFFLUGIA PYRIFORMIS. 



Varieties of Euglypha, figs. 41-45. = Euglypha alveolata ? 

 Euglypha enchelys, figs. 46,47. =Trinema enchelys. 



E. margaritacea, fig. 48. = Cyphoderia ampulla. 



On the Structure and Affinities of the Polycystina. Quarterly Journal of Micro- 

 scopical Science, 1805, v. Transactions of the Microscopical Society of Lon- 

 don, 18G5, xiii, 75. 



A classification of the IJhizoporla, 64. 

 The Amoeban, Actinophryan, and Difflugian Rhizopods. Monthly Microscopical 

 Journal, 1875, xiii, 210. 

 Weston, J. 



On the Actinophrys Sol. Quarterly Journal of Microscopical Science, London, 

 185G, iv, 110, pi. ix, figs. 3-7. 

 Wright, E. Percival. 



Quarterly Journal of Microscopical Science, x, 1870, 305. 

 Uystophrys Haeckeliana. =Pamphagus hyalinus? 



Wright, T. S. 



On the Reproductive Elements of the Rhizopoda. The Annals and Magazine of 

 Natural History, London, 1801, vii. 300. 

 Wysnan, J. 



On Amoeba. Proceedings of the Boston Society of Natural History, 1SG2, ix, 281. 



