Racillariea), Fragilariaceffi, Toxaritim. 677 



1. Toxarium undulatutn Bail. Notes on new Sp. and loc. of Micr. 2686 

 Organ. pag. 15, fig. 24-25, Breb, Diat. verm. pag. 9, fig. 8, Syne- 

 dra imdulala W. Sm. Br. Diat. II, pag. 97, Greg. Micr. Journ. 



III, p. 41, t, 23, t. IV, f. 23, Diat. of the Clyde pag. 59, tab. 6, 

 f. 107, Jan. et Rabenh. Diat. Hond. t. 3, f. 1, Rabenh. Alg. n. 1426, 

 Rabenh. Fl. Eur. Algar. I, p. 130, V. H. Syn. p. 154, t. 42, f. 2. 



— Maximura; valvis gracillime lanceolatis, eximie undulatis, 400- 

 450 =* 7-8, apicibus longissime productis, subclavatis; striis granu- 

 latis, 10-12 in 10 p.., in parte latiore valvae irregulariter dispo- 

 sitis. 



Rah. ad oras fere totius Europae ; in mari rubro et ad oras 

 Americae borealis (Grunow, Bailey). 



2. Toxarium Hennedyanum (Greg.) Grun. in V. H. Syn. t. 42, f. 3, ^m 

 Synedra Hennedyana Greg. Diat. of the Clyde pag. 60, n. 108, 



t. 6, f. 108, Rabenh. Fl. Eur. Algar. I, p. 130, V. H. Syn. p. 154. 



— Valvis angustissimis, usque ad 900 a. longis, non undulatis, me- 

 dio apicibusque valde inJElatis, punctis validis irregulariter disposi- 

 tis obsitis. 



Hab. in aquis marinis ad oras Scotia^ (Gregory), ad «Osten- 

 de» Belgii (Deby), intra Salpam prope aMessina)) Siciliae (Ca- 

 STRACANe), in fundo sinus quarnerensis in mari adriatico (Grunow). 



3. Toxarium rostratum Hantzsch Diat. Ostind. Arch. 1863, pag. 19, ^ess 

 t. 5, f. 4. — Toxario undulaio Bail. simillimum, robustum; valvis 

 380-530 [j.. longis, medio 12-20 latis, cornubus non undulato-ar- 

 cuatis, circiter 5 a, latis, dein apice varie tumidis; superficie ir- 

 reguhiriter punctata (punctis in series lineares non dispositis). 



Hab. inter Algas ex Archipelago Indiae orientalis reportatas. 



— Color frustuli exsiccati brunneolus. 



4. Toxarium Frauenfeldii Grun. in Wien. Verhandl. 1862, pag. 406, ^m 

 t. 7, fig. 26 (sub Synedra), Rabenh. Fl. Eur. Algar. I, p. 130. — 

 Oreviter stipitatum; valvis anguste lineari-lanceolatis, 150-180^:5 

 5-7, apice longe productis leniter dilatatis, striis transversis 14 in 



10 u.., pseudorhaphen attingentibus, in media autem valvae parte 

 paullulum abbreviatis. 



Hab. inter Algas varias prope cc El Tor» in mari rubro lectas 

 (Frauenfeld). — Var. doljensis Pant. Foss. Bacill. Ung. I, p. 36, 

 t. XXII, f. 195: valvis maxirne elongatis, plerumque curvatis, 2,5 

 u.. latis, polis rotundatis, subcapitatis; margine punctato, punctis 

 I21/.3 in 10 u. Fossilis ad uDolje» in Hungaria (Pantocsek). 



5. Toxarium undosum (Grun.), Synedra undosa Grun. in Hedwigiaj^2690 



