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

striation reappears along inner lip on base. Fine, slightly opisthocyrt growth lines cross spiral lines. Remarks — There are no marked differences between the Bakony specimens and that figured by PARONA (1892). The slighdy smaller spiral angle of the specimen of SACCHI VlALLI & CANTALUPPI (1967) cannot be regarded as significant difference. These latter authors revised the descriptions of PARONA (1892) and wrongly identified Oonia pennina as "Anoptychia'' dubia (TERQUEM, 1865). Apart from the markedly different proportions, TERQUEM's species lacks the spiral swelling below the suture, its whorls are more convex, the suture is deeper, and the peristome shows a significant siphonal extension, which is completely missing in Oonia. Moreover, in spite of the lack of the juvenile shell, the species surely cannot be ranged into genus Anoptychia. The height of the last whorl well exceeds half of the reconstructed total heigh, which is an Oonia character, but, in turn, in Anoptychia it rarely exceeds slighdy a quarter. This very proportional feature served as a basis for ranging this species here into the genus Oonia, instead of Pseudomelania. The above-discussed value is about 1/3 in this latter genus. The most similar form is Oonia dresnayi BOURROUILH, 1966, but its spiral angles are wider by roughly 10°, and its subsutural fold is markedly weaker. Distribution — Gozzano (Southern Alps), Aliddle Liassic; Lókút, Kericser (Bakony Mts), Stokesi Zone. Figure 89 — Oonia pennina (PARONA, 1892), refiguration of the single Bakony Mts find. — A: "apertural" view, xl; B: dorsal view, Xl; C: magnified dorsal view to show details of the ornament, x2. Genus Pseudomelania PlCTET & CAMPICHE, 1862 Type species: Chemniti?ia normaniana D'ORBIGNY, 1850 Pseudomelania turbinata (STOLICZKA, 1861) (Figure 90) 1861: Phasianeila turbinata STOL. — STOLICZKA, p. 177, pi. 3, figs. 1-2. Lectotype — GBa 2008/69/26/1 (selected here). Material — Tree + ?one? "original" specimens twelf further ones; peristome and apex not or partially preserved. Measurements H HL HP lectotype *9.5 *5.5 *3.5 Shape — Small shells of high conical spire, consisting of feebly convex whorls, separated by slightly impressed suture. Remnants outline subglobular protoconch; its earliest part absent. Periphery rounded, base convex, anomphalous. Peristome not preserved but lack of shell duplication at parietal region suggests its discontinuity. Cross-section of whorls water dropp-shaped. Sculpt u r e — Uncertain traces of tiny riblets close to upper suture visible on earliest preserved (protoconch) whorl. On subsequent whorls only fine, feebly sigmoidal growth-lines visible. Lower part of "S" much wider and more curved than upper segment. Remarks — One of the specimens, though its measurements are not significantly different from that of the others, possibly belongs to another species, because its periphery is rounded angular and the complete shell (post-protoconch whorls and base) are covered by spiral striae. Further material needed to resolve the question. D W A A AL *5 *3.3 33° 33° Distribution — Hallstatt, Hierlatz Alpe, Late Sinemurian (Oxynotum Zone); Kratzalpe, Sinemurian. Figure 90 — Pseudomelania turbinata (STOLICZKA, 1861), lectotype and a paralectotype. — 1-2: copy of the original figures from STOLICZKV (1861) Tafel 111; A-D: dorsal (A, C) and and apertural (B, D) views of the lectotype, A-B - x\, B-C = X3; E—G: apertural (E) and dorsal (F, G) views of a paralectotype, E-F = xl, G = X3.