Kieselalgen des Balaton. 
91 
XXX. nem: Stenopterobia Breb. 1867. 
248. Stenopterobia hungarica Pant. n. s. 
Valvis elongato-sigmoideis, 111-—112 fi, longis, 6'3—6’5 jj. 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 anceps 
(Lew.) Breb. quam Lewis in America boreali, loco classico Cornwallis rencenter 
collegit. In statu fossili ex Gallia in striatis diatomaceis ad de Vaussiviere sitis, a 
cl. fratre Heribaud detecta. Ultimo tempore, autem a dar. diatomologo germanico 
O. Müller in statu recente in lacubus subalpinis in monte Riesengebirge in Silesia 
sitis, detecta 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 distincta. 
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. PL: D. pg. 368, fig. 119, 
tb. 12, fig. 482b; Istvf.: Balat. pg. 91; Schütt: Bac. pg. 145, fig. 264; Eyferth: 
Einf. Lebensf. III, 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.: PT.; Temp.-Perag.: Coli. Nr. 361. 
Valvis oblongo-ellipticis, medio constrictis, 150—160 // longis, 24'2—25//latis, 
polis late-cuneiformibus; margine costulato; costulis arcuatis, 8—9 in 10//. Super¬ 
ficies valvae undulata, ad polos impressa, elevationibus striolatis, striis transversis, 
depressionibus disseminate, grosse punctatis. 
Seeschlamm, Strandpfützen bei: Balatonfüred, Siöfok, Puszta-Szantöd; Söstö 
bei Fehervär (tb. XI, fig. 277). 
250 Cymatopleura pygmea Pant. n. s. 
Valvis elongato-angustato-ellipticis, 39'6 // longis, 12 // latis, cum lateribus 
directis, et polis rotundatis, medio valvae cum imagine panduriformi; elevationibus 
