Bacillariese, Nitzschiace;t', Nitzschia. 517 



Notarisia 1888, p. 537. — Vaivis linearibus elongatis, 25 y.. latis; 

 punctis carinalibus magnis, ^Yo '" 10 (^■■■> in strias crassas nigre- 

 scentes horizontales transeuntibus; striis 9 in 10 p.., punctatis. 



Ilab. fossilis ad «Szent-Peter» in Hungaria. — Adest etiam 

 e uSzakal)) Hungariai fornia interrupta Pant.: striis carinalibus 

 crassis, nigricantibus, interruptis. An Nitzschicc pulcfterrinice K. 

 et G. varietas? 



67. Nitzschia Weissflogii Grun. in Cleve Diatoms from the West In- 2061 

 dian Archipelago p. lo, 01. et Gr. Arct. Diat. pag: 81. — Valvis 

 longe angustissimeque navicularibus, 155-320 a. longis, carina di- 

 stinctissima, levibus vel granulis irregulariter sparsis, parvis, series 

 longitudinales coheerentes tantum in carina et prope valvae margi- 

 nes efticientibus instructis, carina serie transversaliura breviuraque 

 linearum ornata. 



Hab. in sinu Campechiano (Cleve). — Variat. var. subglabra 

 1. c. t. 4, f. 22: valvis sublevibus. — Var. sparsa Grun. ioc. cit. 

 f. 23: valvis latioribus, medio subangustatis, usque ad 300 a. longis, 

 granulis minutis irregulariter sparsis obsitis. — Var. interrupta • 

 1. c. f, 23 b: lineis transversis carinalibus elongatis, 3-4-ies in- 

 terruptis. 



68. Nitzschia Grovei Grun. in Botan. Centralblatt 1888, n. 15-16, 2062 

 p. 40, Amphiprora rugosa (Petit?) Grove et St, Diat, Otago III, 



p. 11. — Habitus fere Nitzschice Weissflogii Grun. sed minor, 

 punctis ad carinara strias transversas efficientibus. 

 Hab. fossilis ad «Oaraaru» in Nova Zelandia. 



69. Nitzschia Febigeri Grun. in Cl. et Gr. Arct, Diat, p. 81, J. R. 2063 

 M. S. 1880, p. 396, t. 13, f. 15. — Valvis anguste lineari-navi- 

 culasforraibus, apicibus oblique truncatis, carina exiraie definita, ut 



in N. spathulata utroque apice ampliata; punctis carinalibus strio- 

 las breves efficientibus, 3-4 in 10 u.., fascia longitudinali confor- 

 mium striarum raediura valvce percurrente; striis transversis pun- 

 ctatis, 20-21 in 10 a. 



Hab. in Florida (Febiger). 



70. Nitzschia COncinna Grun. in Van Heurck Typ. Diat. Belg, ser. XXII 2064 

 et in Botan. Ceutralblatt XXIII, 1888, p. 324. — Valvis elonga- 



tis, scapliiformibus, acute carinatis, costulis carinalibus parura pro- 

 longatis, 8-9 in 10 u.., punctis nonnullis in superficie valv.ie irre- 

 gulariter sparsis; frustulis e facie connectivali visis linearibus, 

 190:^10, medio levissime constrictis, membrana connectivali com- 

 posita, tenuissime fransverse striata. 



