t'osciiiodiscus Noinianni (iKEo I9(i 



— oculiis iridis Kllitii.. — riiili;ii. \;\v. 



— punctulntiis Oreo Hit» 



— ladiatus KliRB., et var 197 



— Kothii (Ehrh. ?) CrBUN I9(i 



— KciiitUlans (Jrev., = apollinis var. 



stellaiis Rop Ult) 



— Ktriatiis Kii-rz., = C.vclotella s. 



— snbbuUiens Jøro 19H 



sublineatns GuiN. 



— siilitilis Ehrb 191) 



— si/inbolophonts Grun., = stellaiis var. 



— si/mmetrictis A. ScHM., = Rotliii. 



Coscinosira polvcliorda (Gran) Gran 196, 198 



Cyclotella comta (Ehrb.) Kutz 198 



— striata (KiJTZ.) Grun 198 



C'ynibella cistula (Hempr.) Kirciin 217 



— cymbiformis (Ag.?) VH 217 



Denticida distans Greg., = Glyphodesmis d. 



— fulra Grbg., ^ Bimeregramma l'. 



— minus Greg., = Dimeregranima m. 



— nana Greg., = Dimeregramnia miuii.< var. 



— statirophora Greg., = Plagiogramma .s. 



Dimeregranima fulvum (Greg.) Ealfs 202 



— minus (Greg.) Ralfs 202 



Diploneis bomboides (A. Schm.) Cl 216 



— bombus Ehrb 217 



— borealis (Grun,) Cl 215 



— chersonensi.s (Grun.) Cl 217 



— coffeæformis (A. Schm.) Cl 214 



— constricta (Grun.) Cl 21.5 



— contigua (A. Schm.) Cl., var 21-t 



— , crabro Ehrb , et var 217 



— didyma (Ehrb.) Ehrb 217 



— entomon 216 



— eudo.xia (A. Schm.) 214 



— fusca (Greg.) Cl. et var 215 



— hyalina (Donk.) Cl 214 



— liyperborea (Grun.) Cl., et var 215 



— incurvata (Greg.) Cl 216 



— interrupta (Kutz.) Cl 216 



— lineata (Donk.) Cl 216 



— litoralis (Donk.) Cl 215 



— major Cl 215 



— nitesceiis (Greg.) Cl 215 



— notabilis (Grev.) Cl., var '. 215 



— sejuncta (A. Schm.) 214 



— Smithii (Breb.) Cl 215 



— splendida (Gbeg.) Cl 216 



— subcincta (A. Schjl) Cl 216 



— suborbicularis (Greg.) Cl 214 



Doukinia carinata (Donk.) Ralfs 208 



— recta (Donk.) Grun 208 



Endictya oceanica Ehrb 195 



Epitliemia argus Kutz 220 



— gibba Kutz., = Rhopalodia g. 



— gibberula KiJTZ., et var 220 



— musculus, KiJTZ., var 220 



— turgida (Ehrb.) Kutz., var 220 



Encocconeis pseudomarginata (Gkeg.) Cl 206 



Eunotia arcus Ehrb 203 



— bidentula \V. Sm 203 



— major (W. Sm.) Rab 203 



— pectinalis (Dillw. V) Rab 203 



— prærupta Ehrb 203 



triodon Ehrb 203 



Eupodiscus argus W. Sm 199 



— crassus W. Sm., = Actinocyclus c. 



— sparsiis Gkeu., = Actiuocyclus s. 

 Frustulia hita Bréb., = Pinnularia 1. 



Pag. 



Frustulia rliomboides (Ehhb.) De T 217 



Gallionella sulcata Ehub., = Paralia s. 



Glyphodesmis distans (Gheg.) Gbun 203 



— WilHamsonii (Greo.) Grun 202 



Gomphonema constrictum Ehrb 208 



e.xiguuni Kutz., var 208 



— kamtscliaticum Grun 208 



Gramniatopliora arctica Cl 204 



— islandica Ehrb 203 



— macilenta W. Sm., = oceanica var. 



— marina (Lynob.) Kutz 204 



— oceanica Ehrb 204 



— serpentina Ralfs 203 



Heteroneis AUmanniuna (Gbeo.) 207 



— uorvegica (Grun.) 207 



— qnarnet-ensis (Grltj.) Cl., = AUmanniana. 

 Heterostephania Rothii Ehrb., = Coscinodiscus R. 



Hyalodiscus scoticus (KiiTz.) Grun 198 



— stelliger Rail 199 



— subtilis Bail 199 



Isthmia enervis Ehrb .' 201 



— nervosa KiJTz 201 



Mastogloia apiculata W. Sm 217 



— exigua Lew 217 



— Smithii Thw 217 



Melosira Borreri Grev 198 



— gi-anulata (Ehp.b.) Ralfs 198 



— Eoeseana Rab 198 



Meridiou circulare (Grev.) Ag 203 



— marinum Geeg., = Sceptroneis lu. 



Navicula abrupta (Greg.) Donk 213 



— amphisbæna Boby, /= Caloneis a. 



— angulosa Geeg., = N. palpebralis var. 



— apis A. Schm., = Diploneis chersonensis. 



— aspera V.H., = Trachyneis a. 



— Barclayana Greg., = palpebralis var. 



— blanda A. Schm., = Caloneis b. 



— bomboides A. Schm., ^ Diploneis b. 



— bombus Geeg., = Diploneis b. 



— borealis A. Schm., = Diploneis b. 



— breris Greg., = Caloneis b. 



— cancellata Donk. et var 211 



— cha-sonensis Grun., = Diploneis c. 



— clavata Greg 213 



— claviculus Gkeg., = Pinnularia c. 



— coffeæformis A. Schm., = Diploneis. 



— compressicauda A. Schm 212 



— c07isimilis A. Schm., = Caloneis c. 



— constricta Gbdn., = Diploneis c. 



— crabro Ehrb., = Diploneis. 



— crucif era Grun 212 



— cntciformis Donk., ^ Pinnularia. 



— cuspidata KtJTZ 210 



— didijma A. Schm., = Diploneis d. 



— digito-radiata (Gbeg.) A. Schm 211 



— directa W. Sm., et varr 211 



— distans (W. Sm.) Cl 212 



— divergens A. Schm., = Pinnularia d. 



— Donkinii A. Schm., = Diploneis constricta. 



— elongafa Grun., = Caloneis liber var. 



— entomon , = Diploneis e. 



— Eudoxia A. Schm., = Diploneis E. 



— Eugenia A. Schm., = Diploneis sejuncta. 



— finmarchioa (Cl. et Grun.), Cl 211 



— fistula A. Schm., = Stenoneis inconspiiua. 



— forcipata Grev. et var 213 



— fortis (Greg.) Donk 212 



— fraudulenta A. Schm 211 



— frigida Grun 211 



— fusca Greg., = Diploneis f. 



