Kieselalgen des Balaton. 91 



XXX. nem: Stenopterobia Breb. 1867. 

 248. Stenopterobia huttgarica Pant. n. s. 



Valvis elongato-sigmoideis, 111 — 112 jj, longis, 6'3 — 65 jji latis, cum polis obtu- 

 sis; carinis duabus, marginalibus; poris carinalibus, validis, 5 in 10//; striis trans- 

 versis parallelis, 14 in 10 /*, medio valvae, per vittam longitudinalem interruptis. 



Söstö bei: Fehervär (tb. XI, fig. 279). 



Recedit per datam diagnosim species nostra a similima Stenopterobia aneeps 

 (Lew.) Breb. quam Lewis in America boreali, loco classico Cornwallis rencenter 

 collegit. In statu fossili ex Gallia in striatis diatomaeeis ad de Vaussiviere sitis, a 

 cl. fratre Heribaud deteeta. Ultimo tempore, autem a clar. diatomologo germanico 

 O. Müller in statu recente in lacubus subalpinis in monte Riesengebirge in Silesia 

 sitis, deteeta et ab eo in opere suo: «Bacillariales aus den Hochseen des Riesen- 

 gebirges > pg. 33, perlate descripta. 



Genus Stenopterobia transitum fecit inter Surirellas et Nitzschias. A Suri- 

 rellis jam defectu alarum, a Nitzschiis ob carinas binas distineta. 



Tribus: SURIRELLOIDEAE. 



XXXI. nem: Cymatopleura W. Sm. 1851. 



249. Cymatopleura Librile (E.) Pant. 



Synon. : Cymatopleura Solea W. Sm. : in Ann. Nat. Hist. 1851, pg. 12, tb. 3, fig. 9» 

 — Brit. D. I, pg. 36, tb. 10, fig. 78; Grün.: Verh. 1862, pg. 466; Pritch.: Inf. pg. 

 793, tb. 9, fig. 155, Borzsc: Bac. tb. 1, fig. 14; Brun: D. Alp. pg. 97, tb. 1, fig. 

 10; V. H.: Syn. pg. 168, tb. 55, fig. 6, 7; Truan: D. Ast. pg. 69, tb. 7, fig. 2—3; 

 Pelletan: D. I, pg. 637; Wolle: D. tb. 40, fig. 1,4, 13; V. H.: D. pg. 368, fig. 119, 

 tb. 12, fig. 482b; Istvf.: Balat. pg. 91; Schutt: Bac. pg. 145, fig. 264; Eyferth: 

 Einf. Lebensf. 111, pg. 224, tb. 7, fig. 57; De Toni: Syll. pg. 599; Cymbella Solea 

 Breb.: Alg. Falaise pg. 51, Nr. 14, tb. VII; Surirella Solea Breb.: Consid. pg. 17; 

 Kütz.: Bac. pg. 70, tb. 3, fig. 61; Rbh.: S. D. pg. 28, tb. 3, fig. 7; Navicula Librile 

 E.: Inf. pg. 185, tb. 13, fig. 22, 1—3. Collectiones: Rbh.: Algen Nr. 983, 

 1029; Cleve-Möller: D. Nr. 226, 227; Möller: Typenp. II. Gruppe, 1. Reihe, Nr. 14; 

 V. H.: Typ. Nr. 365; Temp.-Perag.: Fr.; Temp.-Perag.: Coli. Nr. 361. 



Valvis oblongo-ellipticis, medio constrictis, 150 — 160 fi longis, 242 — 25 p. latis, 

 polis late-euneiformibus; margine costulato; costulis arcuatis, 8 — 9 in 10 it.. Super- 

 ficies valvae undulata, ad polos impressa, elevationibus striolatis, striis transversis, 

 depressionibus disseminate, grosse punetatis. 



Seeschlamm, Strandpfützen bei: Balatonfüred, Siöfok, Puszta-Szäntöd; Sostö 

 bei Fehervär (tb. XI, fig. 277). 



250. Cymatopleura pygmea Pant. n. s. 



Valvis elongato-angustato-ellipticis, 39'6 ;jl longis, 12 jjl latis, cum lateribus 

 directis, et polis rotundatis, medio valvae cum imagine panduriformi; elevationibus 



