INDEX 



363 



Pleurosigma, 170, 172, 173, 175, 176, 189, 208, 227, 



231. 343. 344- 347-9. 35 1 

 Podosira, 240 

 Podosphenia, 337-8 

 polaris, Melosira, 189, 226, 234 

 polydactyla, Rhizosolenia, 169, 181, 182, 187, 188, 



196, 198, 316 

 polygonum, Chaetoceros, 290 

 polymorpha, Biddulphia, zjj-S 

 polymorpha, Biddulphia, 189, 226, 277-8 

 polymorphus, Cerataulus, 277 

 proteus, Tropidoneis, 173, 350 

 pseudobreve, Chaetoceros, 302 

 pseudocrinitatum, Chaetoceros, 171, 304 

 Pseudo-triceratium, 171, 203, 231, 273, 282 

 pulchella, Biddulphia, 274 

 punctata, Biddulphia, 189, 277 

 punctata, Lauderia, 169-72, 196, 197, 240 

 punctata var. Biddulphia, 2"n 

 punctata var. subaurita, Biddulphia, 277 

 punctata var. subtriundulata, Biddulphia, 277 

 pyrenoidophorus, Coscinodiscus, 165, 183, 226, 253 

 Pyrgodiscus, 203 

 Pyxilla, 309, 319, 321 



radiata, Euodia, 264 



radiatus, Coscinodiscus, 163, 164, 167-76, 180, 



l8 3-5. l8 7. l8 9> IQ 3-5. 2 5° 

 radiculum, Chaetoceros, 169, 174, 176, 227, 297 

 Ralfsi, Chaetoceros, 170, 185-7, x 9^> 222 > 3 02 

 regia, Biddulphia, 186, 222, 278 

 regia, Denticella, 278 

 remotus, Chaetoceros, 291 

 reticulatus, Aster omphalus, 269 

 Rhabdonema, 192, 204, 208, 227, 232, 330, 339 

 Rhizosolenia, 160, 161, 163-98, 200, 204, 206-8, 215, 



217, 222, 223, 227, 230, 309-22 

 rhombus, Rhizosolenia, 165, 166, 168, 174, 176, 178, 



223, 227, 317 

 robusta, Rhizosolenia, 170-3, 187, 194-6, 222, 317 

 Roperiana, Asterolampra, 270 

 Roperianus, Asteromphalus, 175, 177-9, l8 3> 2 7° 

 rotula, Actinocyclus, 163, 222, 263 

 rotula, Asterolampra, 267 

 rudis, Chaetoceros, 293 



sarcophagus, Triceratium, 283 

 scalaris, Anaulus, 189, 226, 288, 289 

 Schimperianum, Chaetoceros, 176, 181, 190, 191, 



227, 298 

 Schimperiella, 174, 175, 202, 226, 230, 233, 256 

 Schizonema, 344 

 Schroderella, 170-3, 186, 191, 193-6, 202, 209, 222, 



230, 233, 241 

 Schroderi, Lauderia, 241 

 Schroderi, Schroderella, 171, 172, 186, 191, 193-6, 



209, 222, 241 

 Schuettii, Navicula, 189, 345 

 scitulum, Triceratium, 283 

 Scoresbya, 189, 231, 343, 346 



scutellum, Cocconeis, 183, 342 



semispina, Rhizosolenia, 206, 315 



senarius, Actinocyclus, 271, 272 



senarius, Actinoptychus, 163, 164, 177, 185, 186, 



188, 191-4, 222, 260, 262, 271-2 

 septenaria, Asterolampra, 268 

 seriata, Nitzschia, 163, 165-9, 171, 175-8, 180-3, 



188-92, 194-6, 219, 227, 352 

 serpentina, Gammatophora, 189, 227, 339 

 setigera, Rhizosolenia, 184, 318 

 seychellarum, Chaetoceros, 170, 171, 173, 222, 296 

 Shrubsolii, Rhizosolenia, 164, 165, 168, 169, 174, 



184, 186, 194, 195, 318 

 sigma, Rhizosolenia, 317 

 Sigmatella, 347-8, 351 

 sigmoidea, Bacillaria, 347, 348, 351 

 simbirskianus, Coscinodiscus, 183, 254 

 simplex, Rhizosolenia, 164, 166-8, 170-3, 176, 179, 



182, 183, 186, 193, 195, 319 

 Skeletonema, 191-6, 202, 208, 230, 233, 236 

 Smithianum, Pleurosigma, 189, 349 

 sociale, Chaetoceros, 167, 168, 176-9, 181, 188, 191, 



194, 227, 305 

 sol, Coscinodiscus, 257 

 sol, Ditylum, 170, 171, 173, 222, 285 

 sol, Gallionella, 234 

 sol, Melosira, 188, 189, 208, 226, 234 

 sol, Planktoniella, 163, 164, 169-74, 184, 186-8, 



192-5, 221, 222, 257-8 

 sol, Triceratium, 285 

 sphaerica, Melosira, 165, 174, 177-9, 181, 208, 226, 



234 

 Spatangidium, 269 

 spathulata, Synedra, 335 

 splendens, Actinoptychus, 163, 222, 272 

 splendens, Actinosphaenia, 272 



stellaris, Coscinodiscus, 165, 180, 182, 189, 226, 243 

 stelliger, Hyalodiscus, 185, 236 

 Stephanopyxis, 163, 164, 169-72, 185-7, I 9 I > IQ 4> 



196, 197, 202, 208, 209, 222, 230, 233, 236-7 

 Stephanos, Pyxilla, 319 



Stictodiscus, 183, 189, 202, 210, 226, 229, 265 

 Stolterfothii, Rhizosolenia, 171-3, 186, 196, 319 

 Streptotheca, 196, 203, 213, 231, 273, 287 

 striata, Biddulphia, 166, 174-82, 188, 189, 198, 199, 



226, 278 

 striata, Eucampia, 319 

 striata, Rhizosolenia, 316 



striatula, Fragilaria, 175, 183, 184, 218, 221, 331 

 stricta, Synedra, 171-3, 222, 335 

 striolatum, Triceratium, 283 

 styliformis, Rhizosolenia, 165, 166, 169-72, 174-7, 



179, 182, 184-9, 1 9 I -^< 217. 222, 227, 309, 310, 



312, 314, 320 

 sub-bulliens, Coscinodiscus, 166, 167, 188, 189, 209, 



250 

 sublinearis, Fragilaria, 227, 333 

 sublinearis, Fragilariopsis, 198, 199, 227, 333 

 subpolaris, Navicula, 198, 227, 345 

 subtilis, Coscinodiscus, 163, 175-81, 183, 226, 254 



