Vörös A. szerk.: Fragmenta Mineralogica Et Palaentologica 18. 1996. (Budapest, 1996)

? 1991. Ptychobairdia cf. kuepperi (Kollmann, 1960) - LORD & LAMBOURNE, PI. 2., f. 13., 16. Derivatio nominis: In honour of the ostracodologist Dr. A. R. LORD. Locus typicus: Hárskút, Közöskút-Ravine. Stratum typicum: Carixian, Ibex-zone, 2. sample. Diagnosis: A form with shape similar to P. kuepperi (Kollmann, 1960), but the distinct ventral swelling is longer and nearly straight with short perpendicular parts on its ends. Description: The anterior outline of both valves is very asymmetrical, its lower part is hardly rounded, the upper part is somewhat acute. The dorsal outline is somewhat asymmetrically rounded. The posterior end is acute and more or less upward directed, the ventral outline is straight or concave on the right valve. There is a shaip, nearly straight ventral swelling on both valves between 0.1 and 0.9 of the total length with perpendicular ending. The dorsal swelling is short and indistinct. A fair reticulation is visible on several specimens. Comparison: The shape is similar to P. kuepperi, but the lateral swelling has another character. Most similar is the P. cf. kuepperi (Kollmann, 1960) in LORD & LAMBOURNE 1991 with somewhat another shape of the lateral swelling. Dimensions: L = 0.68 - 1.2 mm, H = 0.41 -0.78 mm, L/H = 1.54- 1.82 Material: 52 specimens. Ptychobairdia szentgalensis sp. n. (Pl. I: 3-4) Derivatio nominis: After the locality Szentgál in Bakony Mts. Locus typicus: Szentgál, Gombáspuszta. Stratum typicum: Carixian. Diagnosis: Nearly oval form with three longitudinal swellings (a sharp ventral, a short and wide medial and a less pronounced dorsal). There is a rough polygonal network on the lateral surface. Description: The anterior outline of the left valve is broadly and symmetrically rounded. The dorsal outline is also nearly symmetrically rounded. Between the dorsal outline and the posterior outline as well as between the posterior outline and the ventral outline there is no break. The dorsal part of the posterior outline is nearly straight, after a distinct break the ventral part is rounded. The ventral outline is slightly convex. The ventral swelling is sharp, more arched as the ventral outline and extends from 0.15 to 0.8 of total valve length. The median swellig is short, wide and flat, it has a central position. The dorsal swelling is indistinct. There is a rough polygonal network on the lateral surface which is lacking on the edge of the ventral swelling and it is weak anteriorly, posteriorly and on the top of the median swelling. There is no complete right valve in the material. The posterior outline is very acute, the ventral swelling is shorter and sharper. The reticulation is similar as on the left valve. The dorsal swelling is long and distinct without reticulation on its edge. Comparison: The P. schaubergeri Kollmann, 1963 is a similar form, but P. szentgalensis is shorter, the lateral network is rough, the median swelling is more wide. Dimensions: L = 1.10 mm, H = 0.79 mm, L/H = 1.39 Material: 5 specimens. Fragm. Min. et Pal, 18., 1996 41