GENERA AND SPECIES. 191 



Page. 



Gonium glaucuin . . . , . . . 93 



pectorale (Drop II. fig. 5) . . . 93 



Gvges . . . 89 



\i O 



Ichthydium podura . . . . . .142 



Lagenella euchlora . . . . . . 87 



Lepadella ovalis (Drop IV. fig. 8) . , . . 155 



Lininias ceratophylli (Drop IV. fig. 2) . . 149 



Lyncius sphaericus . . . . . .179 



Mastigocerca carinata (Drop IV. fig. 9) . . . 156 



Melicerta .150 



Meridion vernale . . . . . . 76 



Metopidia lepadella 160 



Micrasterias denticulata (Drop I. fig. 2) . . . 62 



Microcodon clavus (Drop IV. fig. 3) . . . 150 



Microglena 84 



Monas crepusculum (Drop II. fig. 1) . . 83 



Navicula acus (Drop I. fig. 16) . . . 74 



amphisbsena (Drop I. fig. 15) . . . 74 



viridis (Drop I. fig. 14) . . . .74 



Notommata longiseta (Drop IV. fig. 4) . . . 151 



Noteus quadricornis (Drop IV. fig. 13) . . .173 



Opercularia . . . . . . .128 



Pandorina morum (Drop II. fig. 4) . . . 90 



