Kieselalsen des Balaton. 33 



var. snbconstricta Pant. n. v. 



Valvis elongatis, medio leniter constrictis, 31 2 ;>. longis, 7 2 // latis, cum apici- 

 bus obtusis, rotundatis ; rhaphe directa, apice versus hamulifera ; costis abreviatis, 

 sat crassis 11 in 10//, medio stauro interruptis, subradiantibus, demum subparal- 

 lelis et adscendentibus. 



Uferpfützen : Siöfok. Söstö bei Fehervär (tb. III, fig. 62). 



var. diminuta Grün. 



Grün, in V. H.: Syn. pg. 77, tb. 5, fig. 8; De Toni: Syll. pg. 24; V. H.: D. pg. 

 171, tb. 2, fig. 84; Cleve: Synop. II, pg. 78. 



Valvis parvulis, 32 — 324 // longis, 8 //. latis, cum polis rotundatis, obtusis; 

 rhaphe directa, ad nodulum centralem cum vitta transversa, hie strias interrurn- 

 pente ornatis; striis subradiantibus 10 in 10 //. 



Seeschlamm : Siöfok. Söstö bei Fehervär (tb. XVII, fig. 376). 



57. Navicula balatonis Pant. n. s. 



Valvis late elongatis, leniter constrictis, 45 — 47/;. longis, 11 — 13 //. latis, cum 

 polis sublanceolatis ; rhaphe directa valida ; costis 10 in 10 // validis, distantioribus, 

 subradiantibus, medio valvae a stauro nudo interruptis ; area nuda, rhaphem cin- 

 gens valde dilatata, rhomboidea. 



Seeschlamm und Uferpfützen : Siöfok (tb. III, fig. 64). 



58. Navicula stauroptera Grün. var. interrupta Cleve. 



Cleve : Synops. II. pg. 83. Synon.: Navicula stauroptera Grün.: Verh. 1860, pg. 516, 

 tb. 4, fig. 18—19; — Fr. J. L. D. pg. 98, tb. 1, fig. 18; A. Schm.: Atl. tb. 44, fig. 41; 

 V. H.: Syn. pg. 77, tb. 6, fig. 7; De Toni : Syll. pg. 25 ; V H.: D. pg. 171, tb. 2, fig. 85; 

 Navicula tabellaria V. H.: Syn. pg. 78, tb. 6, fig. 8 ; V. H : Diät. pg. 172, tb. 2, fig. 87. 



Valvis linearibus, elongatis, medio valvae et polos versus inflatis 59 — 60 // 

 longis, 9 ii. latis, costatis; costis abreviatis 19 in 10 //. radiantibus, polos versus 

 adscendentibus, medio valvae stauro interruptis; rhaphe directa, hamulifera ab area 

 nuda, dilatata, cineta. 



Seeschlamm : Balatonfüred (tb. III, fig. 65). 



var. parva Grün. 



Grün, in V. H.: Syn. pg. 17, tb. 6, fig. 6; De Toni: Syll. pg. 25; V. H.: D. pg. 

 172, tb. 2, fig. 86; Wolle: D. tb. 10, fig. 3. 



Valvis linearibus parvis, margine subrecto, polis modice inflatis ; longis 47 — 

 48 fjt, latis 8 // ; costae longiores 10 in 10 //. 



Seeschlamm : Balatonfüred (tb. HI, fig. 66). 



Resultate dar wissenschaftl. Erforschung des Balatonsees II. Bd. 2. Th. 3 



