306 FRESHWATER RHIZOPODS OF NORTH AMERICA. 



Ehrenberg, Christian Gottfried. 



A. Megastoma, Mb. 1856, 337, Taf. Fig. 3; Mg. Taf. xxxiv, viii, Fig. 1; Abh. 1871, 259. 



= Trinema enchelys ? 

 A. Microstoma, Mg. Taf. xxxviii, xxi, Fig. 11 ; Abh. 1871, 260, Taf. iii.Fig. 13. 

 A. Nidus Pendulus, Abh. 1841, 410, 441, Taf. iii, i, Fig. 48. =Trinema enchelys. 

 A. Nigritarvm, Mb. 1856. 132, Taf. Fig. 5; Abh. 1871, 260. 

 A. nutans, Abh. 1871, 264. = Trinema enchelys. 



A. peristicta, Abh. 1871,260, Taf. iii, ii. Fig. 11,12. =Arcella discoides? 

 A. Pileus, Abh. 1841, 410, 441, Taf. iii, i, Fig. 47. 

 A. Pijrnm, Abh. 187), 260, Taf. iii, Fig. 15; Nordp. Taf. iii, Fig. 34. = Difflugia 



CONSTRICTA. 



A. reticulata, Abh. 1871, 260, Taf. iii, Fig. 5; Mg. Taf. xxxiv, i, B, Fig. 1. = Nebela? 



A. rostrata, Abh. 1871, 272, Taf. iii, ii, Fig. 2. = Trinema enchelys. 



A. scabra, Abh. 1871,261. 



A. seriata, Abh. 1871, 261, Taf. iii, Fig. 6. = Trinema enchelys ? 



A. sqnamata, Abh. 1871, 261. = Nebela collaris? 



A. stellata, Abh. 1871, 261, Taf. iii, Fig. 10. = Arcella dentata. 



A. Tcxtrix, Mb. 1872, 293 ; Nordp. Taf. iii. Fig. 31. = Trinema enchelys. 



A. nncinata, Mb. 1845, 361; Abh. 1871, 261 ; Mg. Taf. xxxiv, viii, Fig. 2; Taf. xxxviii, 



A, xxi, Fig. 4. = Trinema enchelys. 



A. vulgaris, Abh. 1830, 40, 61, 69, 75, Taf. i, Fig. vi ; 1831, 90 ; Inf. 133, Taf. ix, Fig. 



v ; Mg. Taf. xxxviii, A, xxi, Fig. 10. 

 CypMdium a ureal urn, Inf. 135, Taf. ix, Fig. ix. 



Difflugia acanthophora, Abh. 1841, 413, 444, Taf. iv. i, Fig. 36. = Euglypha alveolata. 

 D. acuminata, Abh. 1830, 75 ; 1831, 90 ; Inf. 131, Taf. ix, Fig. iii. 

 D. adunca, Abh. 248, Taf. iii, i, Fig. 8, 9. = Cyphoderia ampulla. 

 D. alabamensis, Abh. 248, Taf. iii, Fig. 10. = Cyphoderia ampulla. 

 D. alpicola, Abh. 1858, 453, Taf. iii, Fig. vi. 

 D. alveolata, Abh. 1871, 264. = EuGLYPnA alveolata. 

 D. Amphora, Abh. 1871, 248, Taf. iii, Fig. 17. = Euglypha ? 



D. Ampulla, Mb. 1840, 199; Abh. 1871, 274, Taf. iii, Fig. 11. = Cyphoderia ampulla. 

 D. annulata, Abh. 1871, 249, Taf. iii, Fig. 19. = Nebela ? 

 D. antarctica, Abh. 1871, 143, 249, T-if. ii, Fig. 11. 

 D. ipiculosa, Mb. 1872, 297 ; Nordp. 466, Taf. iii, Fig. 17. 

 D. arctica, Mb. 1872, 298; Nordp. 466, Tif. iii, Fig. 28. 

 D. Arctiscon, Abh. 1871, 249, Taf. iii, i, Fig. 2. 

 D. areolata, Abh. 1841, 413, Taf. i, iv, Fig. 8 c; Taf. ii, i, Fig. 45; Taf. iii, i, Fig. 49; 



Taf. iv, v, Fig. 2 ; 1847, Taf. vi, Fig. 61 ; Mg. Taf. xxxiii, iv, Fig. 2 ; Taf. xxxiv, i, 



B, Fig. 2, iii, B, Fig. 1 ; Taf. xxxviii, xxi, A, Fig. 2 ; Taf. xxxix, iv, Fig. 25 ; Nordp. 

 466, Taf. iii, Fig. 23. = Euglypha alveolata. 



D. assulata, Abh. 1871, 143, 219, Taf. ii, Fig. 4,5. =Quadrula symmetrica. 



D. fasterophora, Abh. 1871, 249, Taf. iii, i, Fig. 18. 



D. azorica, Abh. 1871, 143, 249, Taf. ii, Fig. 29. 



D. BaUeyi, Abh. 1871, 250, Taf. iii, Fig. 29. = Marine, Cadium marinum, Bailey 



D. baltica, Abh. 1871, 264. = Cyphoderia ampulla. 



D. Battlogi, Abh. 1871, 143, 250, Taf. iii, Fig. 17. 



D. binodis, Abh. 1871, 143, 250, Taf. ii, Fig. 22,23. = Nebela collaris. 



D. Briictcri, Mb. 1848, 379; Abh. 1871, 274, Taf. iii, Fig. 20. = Nebela? 



D. cauccllata, Mb. 1848, 379; Abh. 1871, 143, Taf. ii, Fig. 3. = Nebela collaris t 



D. capensis, Abh. 1871, 143, 250, Taf. ii, Fig. 33. =Quadrula symmetrica, var. 



D. carolincusis, Abh. 1871, 250, Taf. iii, Fig. 14. =Quadrula sy.mmetrica. 



D. Carpio, Abh. 1871, 143, 251, Taf. ii, Fig. 21 ; Taf. iii, Fig. 21. = Nebela collaris. 



D. fcaucasica, Abh. 1871, 251, Taf. iii, Fig. 28. 



D. eellulifera, Mb. 1872, 298; Nordp. 4J6, Taf. iii, Fig. 24. = Nebela collaris. 



D. cellulosa, Abh. 1847, 460, Taf. vi, iii, Fig. 70; 1871, 251; Mg. Taf. xxxix, xiv, Fig. 26. 



D. ciliata, Mb. 1848, 379 ; Abh. 1871, 143, Taf. ii, Fig. 26. = Euglypha ciliata. 



D. collaris, Mb. 1848, 218; Abh. 1871, 143, Taf. ii, Fig. 27; Taf. iii, i, Fig. 21. = Nebela 



COLLARIS. 

 D. Cucnrbitnla, Abh. 1871, 143, 251, Taf. ii, Fig. 8. 



