Kieselalgen des Balaton. 27 



37. Stauroneis producta Grün. 

 V. H.: Syn. tb. 4, fig. 12; St.parvula Cleve var. producta Cleve: Synop. I, pg. 149. 



Valvis parvulis 19 — 20 ft longis, 55 fi latis, late lanceolatis cum polis ob 

 tusis; stauro transverso ; striis 28 in 10 fi transversis parallelis, nudis 

 Seeschlamm : Balatonfüred (tb. II, fig. 42). 



38. Stauroneis balatonis Pant. n. s. 



Valvis elongato lanceolatis, 42 — 43 fi longis, 9 fi latis, cum apicibus sub- 

 acutis; rhaphe directa; stauro transverso, nudo, sat dilatato; striis subtilibus 30 in 

 10 fi, radiantibus. 



Seeschlamm: Siöfok (tb. II, fig. 39, 40). 



34. Stauroneis legumen E. var. balatonis Pant. n. v. 



Valvis lanceolatis, 25 — 26 fi longis, 6 — 63 // latis, acuminatis, margine incisis; 

 rhaphe directa; stauro transverso, dilatato, nudo; striis parallelis 30 in 10 fi. 



Seeschlamm ; Siöfok, Balatonfüred, Überfuhr bei Puszta-Szäntöd (tb. II, fig, 

 43, 44). 



40. Stauroneis Smithii Grün, var incisa Pant. n. v. 



Valvis maxime convexis, 18'9 fi longis, 5'4 // latis, late lanceolatis, acutis, 

 medio valvae constrictis; rhaphe directa, stauro transverso dilatato; striis transversis, 

 parallelis, 33 in 10 //, usque ad apicem non percurrentibus, propter convexitatem 

 valvae quasi pulvinulos quatuor constituentes. 



Seeschlamm : Siöfok (tb. II, fig. 45). 



VI. genus: Mastogloia Thw. 1848. 



41. Mastogloia Grevillei W. Sm. 



W. Sm.: B. D. II. pg. 65, tb. G2, fig. 389; Grg.: M. J. 1856, tb. 1, fig. 16; Pritch.: 

 pg. 925; Grün: 1860, pg. 575; Rbh.: A. E. pg. 261; Jan. et Rbh.: Hond. pg. 9, 

 tb. 4, fig. 9; V. H.: S. pg. 71, tb. 4, fig. 20; De Toni: Syll pg. 315; Schmidt: Atl. 

 tb. 185, fig. 1, 2; Cleve: Syn. II, pg. 146; V. H: D. pg 155, tb. 2, fig 65; 

 Peragallo: D. M. Fr. pg 31, tb. 5, fig 18; Istvf.: Balat. pg. 75, fig. 2. Col- 

 lectiones: V. H.: Typ. 48; - - Temp. Per.: D. M. 242. 



Valvis parvis 36 - 385 // longis, 8 - 5 — 9 f. latis, linearibus, utroque fine obtuse 

 cuneatis, loculamentis 6 in 10//; nodulo centrali, magno, rotundo ; rhaphe directa; 

 striis transversis, radiantibus 9 — 10 in 10 // validis, punctatis. 



Uferlaken: Siöfok (tb. III, fig. 46). 



