2 BRITISH FRESHWATER RHIZOPODA. 
Family 2. ReEtIcuLosa. 
(7) Gymnophrys, (8) Biomyxa, (9) Penardia, (10) 
Chlamydomyza. 
Family 3. VaMPYRELLIDA. 
(11) Vampyrella, (12) Hyalodiscus, (13) Nuclearia, 
(14) Archerina. 
Order II. CONCHULINA. 
Family 1. ARcELLIDA. 
A. Aroriutnm : (15) Arcella, (15a) Pywidicula, (15b) 
Microcorycia, (15c) Parmulina, (16) Pseudochlamys, 
(16a) Capsellina, (16b) Diplochlamys, (17) Centropyzis. 
B. Dirrivenz: (18) Difflugia, (18a) Bullinula, 
(18b) Plagiopyzis, (18c) Cucurbitella, (19) Pontigulasia, 
(20) Lesquereusia, (21) Phryganella, (22) Difflugiella, 
(28) Cryptodifflugia. C. Nepetinz: (24) Hyalosphenia, 
(25) Nebela, (26) Quadrulella, (27) Heleoprea, (27a) 
Averintzia. D. Pssuponesetinz: (28) Leptochlamys, 
(29) Cochliopodium, (80) Amphizonella, (81) Zonomyza. 
Family 2. HuGnypaina. 
(82) Huglypha, (33) Placocysta, (84) Assulina, (85) 
Sphenoderia, (36) Paulinella, (87) Cyphoderia, (88) 
Campascus, (39) Trinema, (40) Corythion. 
Family 3. Gromrtna. 
A. Pssupocromun#: (41) Lecythium, (42) Pseudo- 
difflugia, (43) Diaphoropodon, (44) Clypeolina.  B. 
ALLogromuNz : (45) Microgromia, (46) Lieberkuehnia, 
(47) Allogromia, (48) Rhynchogromia. 
Family 4. AMPHIS'rOMINA. 
(49) Diplophrys, (50) Amphitrema. 
