' fl^ 



VIII 



TNDKX OF GENERA. 



Pago 



Ooynphondla 370 



G<niiphonema ^85,370 



Gomphonema 371 



aoniothccturfi 2Hr>, rtlO 



Gmminatophom V *2'A4, 319 



(rulnardia 2K4 



Gyrosigmii 23;'), 3ti2 



JIalionffx 2(19 



JliUi k^ch la - 378 



//-' Ihpdta 209 



llL'tuiaulus 233, 31 2 



Ihmiaiilus 3i2, 313 



ITcinidiscus 233, 31G 



IleniiF'tychUh 232, 2*i6 



IL rcufhica 2S5 



J Mfrontephania 246 



ITualodliyru.^ 2 10, 2tiO, 2i]4 



JItjilrosera 314 



I:.thmia 233,311 



r,<th m ieUa 312 



JanUchui 246 



Lainpriscus 310 



Laadcvla 284 



Lepidodiscus 209 



LiptocyHndricuB 284 



LUhftstylldium 3S9 



Lyslgonium 236 



^largarito^icon 323 



Miutodii^cus 281 



Mastogloia 235, 368 



^I L'losira 231 , 23t> 



Mdofffra 240 



MerkUon 370 



Mteasferiaii 273 



Miorpodiscus 2 16, 2t>0 



Moitogramrtia 327 



Nuvkula 235, 333 



Navicala 360, 3t;8, 371 , 373, 377, 3/S, 3S2, 384 



ycldiam 333 



Nilzschia 236, 378 



Nitzschla 31 7, 384 



yUzachidla 378 



Nothoceratiu m 267, 



Xorllla 



OdontcUa 



Odoatldiufn.. 

 Odoiifndiscus. 

 Odonioit'oph . 

 Omphalopdtii 



OrthoneiH 



Orthoselra ... 



Palnicria. 



Pnrafia .. 



Vl nlapodUcufi 



Peragallia 



Ptriptira 



Pernja 



Pin n ukiria 333, 



Fiagiodisc as 



IMiigiogmmnia 231, 



I'higiolropis 2:iS. 



IHcitrodesminni 



289 

 384 

 298 

 318 

 24« 

 298 

 2^)9 

 328 

 236 

 316 

 23ii 

 277 

 285 

 285 

 378 

 371 

 384 

 325 

 367 



! 



Phaf'o.-<ignia . , 

 PUaro-^iphotna 



:\:\:\ 



314 



362 



368 



Page. 



PteiLViManyon 333 



PlnfruMaiinim 351 



rioiaria 233, 313 



Podisvus 277 



Podusira 231 , 210 



Podtmm :!60 



Polyniy xus ." 270 



Porodfscns 237, 26-1 



Porpt'ia 233, 315 



Pi'itcha rdia 378 



Pscudaidiaciw 282 



PsfndvtriccmliKin . 289 



Pgrgodlticas 237 



Pyj-idicida 240, 211, 260, 264, 255 



Raphonci.-^ '. 329 



Pnc/ultia 3G0 



RlmbdoticitKi 321 



RhizoHoleniu 232,283 



Phalvosigma 3(52 



Popcn'a 260 



Kutihin'a 233.317 



Si'Ju::onana 333, 3GG 



Srhndtia 269 



ScoUoplcnni 336, 349 



Skrlrfonnna 285 



S'AiHm 313 



SpatavgUiinm 273 



Sphnidla 370 



Sphrnom'ra 370 



Sphi tU'tocystiH 236, 382 



Siauro-nris :^3, 372 



SUttuvptaxi 3;]3 



Strnnnf'ia 333 



iitawiitey'tbia 384 



Stt'pliHiiopyxis 231,213 



.Stictodiscus 232, 267 



Stidoditi'its 260 



Slig}n({plnjra 368 



HUm-hia 246 



Striutdla 319, :«1 



Sinimt/a ;iS4 



Surirolla ". 236,383 



^Surhdla 32:i, 329, 378, 382, 386 



Si/iuho!ophftra 246 



Hgni'tjdta 371 



^tj)idr}\diium 2H5 



Sijiudni 333, 378 



Stjdrpfniti la 243 



Torpaiiioo 233,314 



Tossrlla 231, 321 



Tditigramuia 314 



Tdrajwdiscu-^ 277 



TiKVonidea 362 



T)-arh}jnc'tfi 336, 338 



TrUrndunn 267, 289, 296, 298, 3H 



TriK< •!] ium 23;J, 289 



Tiuiama 312 



TriixMlisciis 232, 277 



Tropidonch 3t>7 



Trijhliuftdki 378 



17(7i Jlciirddd 359 



Wlllfmocsia 216 



Wittia 2ti9 



Xanlhiupyxis 389 



/f/goreros 289, 2U8, 3 



O 



