Racillariea), Nitzschiaceae, Bacillaria. 493 



plicos ramososve iiiclusis (Geiius Schizonemali iafcer Naviculaceas ana- 



logum). ,. , , , 



DendcHla (Kuctz.) Grun. - Puncta carinalia in costas medium valva) subat- 



tingentes elongata. Stri.e plus minus disfcinctae. 

 Hantzschia Grun. - Est Nitzschia valvis imequilateralibus, dorso convexo- 



curvatis, ventre planis et hic punctorum serie ornatis. 

 Gomphonitzschia Grun. - Est Nilzschia frustulis cuneiformibus, sessilibus 



vel stipiti gelineo brevi vel brcvissimo llabellatim insidentibus (Gcnus Gom- 



phonemati analogum). 



BACILLARIA Gmel. [1788] in Linn. Syst. Nat. ed. XIII, vol. VI (Etyra. 

 bacillus ob formam frustulorura), Rabenh. Fl. Eur. Algar. I, p. 165, 

 De-Toni Osserv. tasson. nacill. p. 901, Nitzschice sectio Bacilla- 

 ria (Grael.) Grua. in Cl. et Gruu. Arct. Diat. 1880, p. 85, V. H. 

 Syn. p. 176. — Frustula bacilliforraia, liuearia angusteve lanceo- 

 lata, recta, primura in tabulas vel fasciculos conjuncta, deia in 

 series obliquas dimota; valvse paullo convexae, carina centralis vel 

 subcentralis minus acuta quara in Niizschice sectionibus; puncta 

 carinalia lateraliter non prolungata. Striae transversa3 in oranibus 

 speciebus distincta^. 



Obs. Genus hoc idem ac Nitzschia Hass. sed raulto anterius a 

 Gmelin conditum prioritatis lege esset loco NitzschicB usurpandura. 

 Taraen, ne synonyraia valde augeatur, genus Nitzschiam servandura 

 existimavi, etsi omnes Nitzschice species sub noraine antiquiore 

 BacillaricG describenda? essent. 



1. Baciilaria paradoxa (Gmel.) Grun. in Cl. et Gr. Arct. Diat. p. 85, V. i99i 

 H. Syn. p. 176, t. 61, f. 6-7, Nilzschia paradoxa Grael. in Linn. 

 Syst. Nat. ed. XIII, vol. VI, 1788, Syn. t. XXXH et LX, f. 279, 

 Ehr. Abh. 1831 et 1833. Inf. p. 196, n. 269, t. XV, f. I, Hassall 

 Freshw. Alg. t. 93, f. 10, Kuetz. Bac. p. 63, t. 21, f. XVHI, Sp. 

 p. 40, W. Sra. Diat. II, p. 10, t. XXXII, f. 279 et t. LX, Rabenh. Alg. 

 n. 361 et 743, Pritch. Inf. t. IX, f. 166 et 167, Niizschia paxil- 

 lifera Heib. Consp. p. 113, Vibrio paxillifer Mueller Inf. 1786, 

 p. 54, t. VII, f. 3-7, Oscil/aria paxillifera Schrank in Nov. Act. 

 Acad. Leop. XI, 2, p. 534, Bacillaria Muelleri Turp. in Dict. Sc. 

 nat. 1818, t. I, f. 1. — Frustulis tabulatira conjunctis, dein subira- 

 bricato-dimotis; valvis anguste lanceolatis, apicibus breve produ- 

 ctis, circ. ad 60 u.. longis, carina subcentrali, punctis carinalibus 

 rotundatis, 6-8 in 10 [x.; striis transversis 207o-22V2 in 10 u.. 



Hab. in aquis subsalsis vel fere duloibus totius Europpe impri- 

 rais Germanire, Neerlandiae, Helgii, Hritannia), Italine, in sinn Co- 



