Bacillaiieae, Naviculacese, Navicula. 95 



V. Lyratms V. H. Syn. p. 93 *). 



327. Navicula Lyra Ehr. Amer. p. 131, t. 1, I, f. 9, Kuetz. Bacill. 3 27 

 p. 94, t. 28, f. 55, Rabenh. Siiss. Diat. p. 40, t. 5, f. 15, Fl. Eur. 

 Algar. I, p. 177 (excl. var. abrupta), Jan. et Rab. Honduras p. 10, 

 t. 3, f. 7, Greg. Diat. of Clyde p. 13, t. 1, f. 13, Grun. in Wien. 

 Verhandl. 1860, p. 532, t. 3, f. 22-23, Donk. Br. Diat. p. 14, t. 2, 

 f. 7, 0' Meara Ir. Diat. p.391, t. 33, f. 1, 5-6, Jan. Guan. p. 27, 

 t. I, A, f. 26, Schra. N. D. t. 1, f. 32, Atlas t. 2, f. 24-25, 32, 

 t. 3, f. 11-12, Journ. Micr. 1878, p. 509, t. 44, f. 1, Cleve 1878, 

 p. 4, t. 1, f. 1, V. H. Syn. p. 93, t. 10, f. 1-2, Edw. N. H. t. 3, 

 f. 35, Torr. Bot. Cl. 1887, p. 73, t. 66, f. 16, Truan Diat. Astur. 

 p. 44, t. 2, f. 23, Pmnularia Lyra Ehr. in Ber. 1845, p. 315. — 

 Valvis late ellipticis, apicibus subinde paullo atteuuato-rostratis, 

 obtuso-rotundatis, ad 110-120^50; rhaphe zona hyalina, angusta, 

 circa nodulum centralem stauriformi-ampliata cincta; striis grosse 

 punctatis, circiter 7-9 in 10 u.., e parte media valvte apices ver- 

 sus magis magisque radiautibus, in utroque latere rhaphes sulco 

 plerumque levi, raedio incurvato et spatiura hyalinura staurifor- 

 meattingente interruptis; sulcis his duobus insimul aream lyrae ad 

 instar efnngentibus. 



Hab. in aquis raarinis et submarinis ad oras Britanniae (Don- 

 kin, O' Meara, Gregory, Arnott, Norman, W. Smith), Daniae, 

 Galliae (Brebisson), Belgii (Van Heurck), Bahusiae (Lagerstedt), 

 Hispaniae (Truan y Luard) , in mari mediterraneo et adriatico 

 (Grunow, Lanzl Piccone, Castracane, De-Toni), in raari rubro 

 (Grunow), ad oras Americae foederatae (Schultze), Honduras (Ja- 

 nisch), ad insulas «Falkland» (Ehrenberg), ad Caput Bonse Spei 

 Africae australis (Grunow, Exped. Novara), ad insulam nicoba- 

 ricam «Kamortha» (Exped. Novara), fossilis in Angamos-Guano 

 (Janisch), fossilis etiam in Hungaria (teste Pantocsek}. — Var. 

 abnormis Grun. in A. Schm. Atlas tab. 2, fig. 8 (absque dia- 

 gnosi). Ad «Zanzibar» (Weissflog). — Var. recta Grun. A. Schra. 

 Atlas tab. 2, f. 18 (absque diagnosi). In sinu mexicano (Weiss- 

 flog). — Var. signata A. S. Atlas t. 2, f. 4, Castr. Chall. Diat. 

 p. 33, t. 30, f. 13. In sinu Mexicano (Weissflog) ; etiam ex Exped. 

 Challenger reportata (Castracane). — Var. australica A. Schm. 



*) Cfr. inter species sectionis «Quadriseriatue», 



