Szabó János szerk.: Fragmenta Mineralogica Et Palaentologica 26. 2008. (Budapest, 2008)

Proconulus? multicostatus (STOLICZKA, 1861) (Figure 69) 1861 : Chemnitzja multicostata STOL. — STOLICZKA, p. 164, pl. 1, fig. 4. Lectotype — GBa 2008/69/4/1 (selected here). Material — A single specimen without juvenile whorls and with partially preserved peristome in STOLICZKA's (1861) "originals collection"and a whorl fragment in the "background collection". Measurements H HL HP lectotype *5.5 *3.2 Shape — High conical, rather thick—walled shell, composed of relatively low, feebly convex whorls with slightly impressed suture. Periphery sharply angular and bearing weak carina; base moderately convex and anomphalous. Peristome somewhat ovate and discontinuous; aperture almost circular, inner lip feebly convex and having furrow parallel to peristome rim at foot of columella, outer lip not preserved. Sculpture — Collabrally, whorls densely covered by feebly parasigmoidal riblets (50 on last whorl). Near last peristome, riblets make peripheral carina first granulate then gradually reaching center of base. Disregarding some obscure spiral line above peripheral carina, spiral ornament visible only on base as dense, equally fine threads. Collabral ornament on base opisthocyrt. Remarks — The shape and ornament resembles to those of some proconulinae genera (e.g. Proconulus itself has also a shallow deepening at the meeting of D W AA AL *5.5 *3.5 22° the columellar and basal lips), and some unpublished species. Together they seem to belong to a genus, having been not established yet because of lack of satisfactory data. Distribution — Hierlatz Alpe, Upper Sinemurian (Oxynotum Zone). Figure 69 — Proconulus? multicostatus (STOLICZKA, 1861), lectotype. — 4 a-b: copy of the original figures from STOLICZKA (1861) Tafel I; A-C: the lectotype in apertural, dorsal and basal views, xl

? D—F the same views, magnified to show the morphological details, x3. Genus ? Discotectus COSSMANN, 1918 Type species: Trochus massalongoi G. G. GEMMELLARO, 1868 Discotectus? sp. (Figure 67: I-L) 1981: Dimorphotectus sp. — SZABÓ, p. 58, pl. 1, figs 14-15 Material — A single, fragmentary specimen (HGM). Measurements H HL HP Figure 67: I-L *8.2 *5 Shape — Dextral, feebly cyrtoconical shell; surface of numerous low whorls flat, periphery carinated and base slightly convex. On columellar lip, large flattened swelling visible. Sculpture — Ornament consists of only fine growth-lines, being prosocline on whorls and opisthocyrt on base. Remarks — Owing to bad preservation, the specimen is not identifiable on species level. Its shape is D W AA AL *13.5 *6.8 28° similar to that of Epulotrochus acteon (D'ORBIGNY) but the columellar structure suggests another genus. First time SZABO (1981) has guessed belonging to Dimorphotectus COSSMANN, 1918 but subsequent comparisons to types require modification. The shape of the columellar fold is most similar to that of Discotectus COSSMANN, 1918. Further material is needed to a right identification. Distribution — Sümeg, (Bakony Mts), Upper(?) Sinemurian. Family Paraturbinidae COSSMANN, 1916 Genus ? Chartronella COSSMANN,1902 Type species: Chartronia digoniata COSSMANN,! 902