Kieselalgen des Balaton. 57 



/; MINUTISSIMAE. 



129. Navicula atotn o/des Grün. 



Grün,: in V. H.: Syn. pg. 107, tb. 14, fig. 11—14; V. H.: D. pg. 227, tb. 5, fig. 

 230. S y n o n. : Navicula minima Gr. var. atomoides Cleve : Synops. I, pg. 128. 



Collectiones: V. H.: Typ. 219. 



Valvis parvulis, 13'5 // longis, 4'5 u latis, ellipticis ; rhaplie directa ; striis 

 transversis parallelis, 26 — 28 in 10 //, saepe in medio valvae, per nodulum centralem 

 transverse düatatum, interruptis. 



Seeschlamm : Balatonfüred (tb. VI, fig. 140). 



130. Navicula minuscula Grün. 



Grün.: in V. H.: Syn. tb. 14, fig. 3; Cleve: Synops. II. pg. 4. 



Valvis minusculis, late-Ianceolatis, 24'3 ;>. longis, 9'9 />■ latis, cum polis sub- 

 acutis; rhaplie directa; nodulo centrali parvulo ; striis 24 — 25 in 10//, transversis 

 parallelis. 



Strandpfützen: Siofok (tb. V, fig. 124). 



131. Navicula istriana (Grün.) Pamt. 



Synon.: Navicula minuscula (Grün.) var. istriana Grün.: in V. H.: Syn. tb. 14, fig. 4; 

 Navicula bahusiensis (Grün.) Cleve var. istriana (Grün.) Cleve : Synops. II, pg. 4. 



Valvis linearibus, lanceolatis, cum polis subrostratis, 27*5 — 28 u longis, 6 2 — 

 63 // latis; rhaphe directa; striis transversis parallelis, 24 — 25 in 10//. 

 Seeschlamm : Siofok (tb. VI, fig. 151). 



VIII. genus: Van Heurckia Breb. 1868. 



132. Vanheurckia rhomboides (E.) Breb. 



Breb.: Monogr. gen. Vanheurckia pg. 4, nr. 3; V. H.: Syn. pg. 112, tb. 17, fig. 1 — 2 

 Truan: D. Ast. pg. 46, tb. 2, fig. 1; V. H.: D. pg. 240, tb. 5, fig. 249. Synon. 

 Navicnla rhomboides E.: Amer. tb. III 1, fig. 15; Kg.: Bac. pg. 94, tb. 28, fig. 45 

 W. Sm.: Br. D. I. pg. 46, tb. 16, fig. 129; Rbh.: Flor Alg. Eur. I, pg. 171; Grün. 

 D. Banka pg. 12, tb. 2, fig. 14; Wolle: D. tb. 17, fig. 9, 10; tb. 22, fig. 21 

 Frustulia rhomboides De Toni: Syll. pg. 277; Istvf.: Balat. pg. 71; Cleve: Synops 

 I, pg. 122. Collectiones: Möller: Test.; Thum.: Test.; V. H.: Typ. Nr. 160 



Temp.-Peragallo: D. Nr 219. 



Valvis rhomboideo-lanceolatis, 49 — 60 // longis, 13 — 14 // latis, apices versus 

 attenuatis, leniterque constrictis; rhaphe duplici a filis duabus approximatis con- 

 tinuis efformata; striis 26 — 28 in 10//, transversis, parallelis. punctatis ; punctis 

 lineas longitudinales constituentibus. 



Seeschlamm, Strandpfützen: Siofok (tb. VI, fig. 148; tb. XVI, fig. 344). 



