INDEX 



[Synonyms are indicated by italics. References to specific descriptions are in heavy type.] 



abbreviata, Licmophora, 207, 338 

 abbreviate!, Podosphenia, 338 

 Achnanthes, 189, 205, 218, 227, 231, 340 

 Actinocyclus, 163, 166-8, 174-81, 183, 189, 190, 



202, 209, 222, 226, 230, 233, 256, 259-63, 271, 272 

 Actinoptychus, 163, 164, 177, 185, 186, 188, 191-4, 



200, 203, 222, 229, 259, 260, 262, 265, 271-2 

 Actinosphaenia, 272 



acuta, Thalassiothrix, 171— 3, 189, 193, 335 

 adriaticum, Rhabdonema, 192, 227, 339 

 aequatoriale, Chaetoceros, 169-73, l %6, 187, 222, 294 

 affinis, Stictodiscus, 183, 189, 226, 265 

 alata, Rhizosolenia, 163-97, 222 > 3 10 

 alata f. gracillima, Rhizosolenia, 310 

 alata f. indica, Rhizosolenia, 31 1 

 alata f. inermis, Rhizosolenia, 311 

 americana, Rhizosolenia, 309 

 Amphiprora, 173, 198, 219, 224, 227, 231, 343, 



349-50 



Amphitetras, 274 



Amphora, 189, 231, 351 



amputata, Rhizosolenia, 312 



Anaulus, 189, 200, 203, 214, 226, 232, 288-9 



annulata, Rhizosolenia, 185, 222, 311 



antarctica, Fragilaria, 198, 331, 332 



antarctica, Fragilariopsis, 164-9, I 74~83. 185, 186, 



188-91, 197, 218, 227, 331, 332 

 antarctica, Molleria, 285 

 antarctica, Schimperiella, 175, 226, 256 

 antarctica, Thalassiosira, 174, 176-82, 188-90, 198, 



209, 226, 237-8 

 antarctica, Thalassiothrix, 181, 192, 335 

 antarctica, Tropidoneis, 165, 174, 175, 183, 227, 350 

 antarcticus, Actinocyclus, 263 

 antarcticus, Dactyliosolen, 165, 167-9, J 75> I 7^> 



178-80, 182, 183, 185, 186, 188, 190, 191, 217, 



227. 323 4 

 antediluviana, Amphitetras, 274 

 antediluviana, Biddulphia, 192, 222, 274 

 antediluvianum, Triceratium, 274 

 anthropomorpha, Biddulphia, 226, 278 

 antiqua, Cocconeis, 189, 199, 341 

 Arachnoidiscus, 189, 202, 210, 211, 226, 229, 265, 



266-7 

 arctica, Biddulphia, 282 

 arcticum, Triceratium, 212, 213, 280-2 

 arcticum, Trigonium, 189, 192, 226, 282 

 aspera, Navicula, 346 

 aspera, Trachyneis, 189, 227, 346 

 Asterionella, 186, 194, 195, 204, 218, 222, 232, 330, 



333 4 



Asterolampra, 169, 170, 184, 187, 203, 210, 221, 222, 



229, 265, 267-70 



Asteromphalus, 163, 166-70, 174-9, 181-6, 189-91, 



193-6, 198, 203, 210, 222, 226, 229, 265, 267, 



269-70 

 Asteromphalus, Coscinodiscus, 192, 193, 243, 245 

 astrolabensis, Biddulphia, 189, 226, 275, 344 

 astrolabensis, Navicula, 189, 344 

 atlanticum, Chaetoceros, 164, 166-70, 174-6, 178- 



81, 183, 184, 195, 222, 290, 292 

 atlanticum var. neapolitana, Chaetoceros, 166, 170, 



172, 173, 186, 187, 190, 290 

 attenuata, Frustulia, 348 

 Attheya, 201 

 audax, Chaetoceros, 290 

 Aulacodiscus, 203 

 Auliscus, 203 



auriculata, Synedra, 189, 334 

 aurita var. obtusa, Biddulphia, 183, 189, 226, 275 

 australis, Surirella, 339 



Bacillaria, 205, 347, 351 



Bacteriastrum, 169-73, ^7< IQ2 > J 95> J 9^> 20 4> 2I 4> 



215, 217, 221, 222, 230, 306-8 

 Bacteriosira, 202, 229, 230 

 balaustium, Eucampia, 164-82, 188-91, 196, 198, 



213, 226, 285 

 balthica, Synedra, 334 

 baltica, Pyxilla, 321 

 Barbieri, Nitzschia, 198, 227, 351 

 belgicae, Amphiprora, 350 

 belgicae, Tropidoneis, 198, 227, 350 

 Bellerochea, 170, 203, 222, 231, 273, 280 

 Bergonii, Cerataulina, 171, 176, 279-80 

 Bergonii, Cerataulus, 279 

 Bergonii, Dactyliosolen, 217, 324 

 Bergonii, Rhizosolenia, 164, 184, 222, 312 

 beta, Coscinodiscus, 173, 244 

 biconcava, Eucampia, 287 

 biconcavum, Climacodium, 171, 172, 222, 287 

 Biddulphia, 163, 166, 171, 174-83, 186, 188-9, I9 X > 



192, 198-200, 203, 211, 213, 222, 226, 231, 273-8, 



280, 282, 283 

 bidens, Rhizosolenia, 166-8, 170, 175, 176, 178, 189, 



190, 227, 312 

 bifrons, Actinocyclus, 166, 167, 174-6, 178, 179, 181, 



226, 260 

 bifrons, Charcotia, 175, 179-82, 189, 198, 226, 256 

 bifrons, Coscinodiscus, 256 

 bilunaris, Synedra, 334 

 bipunctata, Navicula, 343 

 boreale, Chaetoceros, 178, 179, 227, 292 

 borealis, Coscinodiscus, 250 

 borealis, Dactyliosolen, 217, 323-4 

 borealis, Lauderia, 186, 222, 240 



27 



