latere priraario rectangula 0'014 — 0*033 mm. louga, O'OOOG — 0*012 mm. lata, 

 marginibus gibbosis, ciliatis; latere secundario valva 0*023 mm. longa, 0*005 mm. 

 lata, elongato-laiiceolata, in medio cum area laevi lata, transversali et costis dviabus 

 tnmsver.salibus termimita; margiue pimctis grossis (10 in 0"01 mm.) cincto ; struc- 

 tura striolata, striis siibtilissimis (25 in 0*001). 

 J^lesd. 



Plag-iogfpamma Gpeg-rorianum Grev. M. J. 1859, pg. 208, tab. 10, 

 fig. 12; Pritch. Inf. pg. 114, tab. 4, fig. 32; Janisch Hondur. pg. 10, tab. 2, 

 t"ig. 8 ; Van H. Sjnops. tab. 3(3, fig. 2. 

 DoIJe. 



Plag-iogramma neogpadense nov. spec. tab. 8, fig. 63, 71, 827/^. tab. 



28, fig. 2Sb, ^^'U. — Valvula elongata 0*049-0.1 mm. longa, 0*008—0-014 

 mm. lata; polis cuueatis; margine tertia parte superne inferneque et medio leviter 

 constricto, trigibbo. Nodulus centralis rotundus, umbilicatus ; stromae cum plica 

 laevi et punctis subtilissimis haut visibilibus. Margo punctis majoribus uniseria- 

 liter cinctns, medio defficientibus ; valva punctis grossis in lineas longitudinales 

 ordinatis et dissemiuatis (10 in 001 mm.) tecta. 



Szent-Feter. 



DDIEREGRAMMA RALFS. 

 Dimepegramma fossile Grun. in Cleve et Moller Typ. 215, 21G, tab. 

 nostra 8, fig. 67, ^"/^ . tab. 27, fig. 265, ^oo/^. _ Valvis late lanceolatis, subrbombi- 

 cis, obtusiusculis; poris magiiis oblougis utrinque uniserialibus, marginalibus (3^ — b 

 in 0-01 mm.). Longitudo 0034 — 0*044 mm., latitude valvae 0*012—0*013 mm. 

 AIho-, Felso-Esztergdlij, Szeiit-Peter et in strato tertiario prope Nottingham. 

 Dimepeg-pamma mapinum (Greg.) Ralfs in Pritch. Inf. pg. 790; — 

 Denticula marina Greg. Diat. of Clyde pg. 496, tab. 10, fig. 39. , Van. H. 

 Synops. tab. 36. fig. 9. 



Felso-Esztergaly , Szakal, Szent-Peter. 



Dimepegpamma nanum (Greg.) Ralfs in Pritch Inf. pg. 790, tab. 4, 

 fig. 33 ; Denticula nana Greg. 1. c. pg. 494, tab. 10, fig. 34 ; Van H. Synops. 

 tab. 36, fig. 116. 12, 13. 

 Dolje. 



RHAPHONEIS EHRBG. 

 Rhaphoneis angustata nov. spec. tab. 11, fig. 97, ^27/^. tab. 30, fig. 

 313, ^^^/i. — Linearis 0*06 mm. longa, 0*003 mm. lata; polis rotundatis ; area 

 media laevi, anguste lineari; striis transversis (6 in 0*01 mm.) 2—3 punctatis. 

 Kekko, Szakal. 



Rhaphoneis amphieePOS Ehrbg, Mikrogeol. tab. 18, fig. 82 etc. ; Pritch. 

 Inf pg. 791, tab. 14, fig. 21; O'Meara 1. c. pg. 295, tab. 28, fig. 3; Clove 

 Vega pg. 499, tab. 37, fig. 52a.; Van H. Synops. tab. 36, fig. 22, 23. 

 Dolje. 



Forma: tpigona Grun. Van H. Synops. tab. 116, fig. 15; tab. nostra 



29, fig. 292, 6«Vi- 

 Szakal. 



