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

subsequent whorl. Base wall concave but changing into convex when last peristome developed. Sculpture — Spiral threads cover whorls and also base. Strongly opisthocyrt growth-lines cross them, some of them riblet-like (irregularly). All ornamental elements less distinct on last whorl. Remarks — Supposing the same early coiling mode as observed on the available fragments, a complete adult shell must have consisted of about 22—25 whorls of about 10 cm height. Because no early shell (protoconch) are found, that might support the generic attribution, even belonging to Turritellidae is highly doubtful. Placing into the genus Turritella itself, validity of the species name should be also investigated. In such an uncertain situation, the best solution is to let the genus attribution problem pending. From the shape, a Zygopleurid relation could be also concluded, but more uncertain than the place in Turritellidae. The simply opisthocyrt growth-lines do not belong to the character set of the Zygopleuridae. The two figured specimens have rather different ornament beside very similar shape; the spiral threads of the paralectotype are prominently stronger in the same growth stage (size) than on the lectotype. Because the matrices of the two specimens are also different a stratigraphical age difference may be the reason. Transitions between the two ornament types are found amongst the paralectotypes. Distribution — Hierlatz Alpe, Upper Sinemurian (Oxynotum Zone); Schafberg at St. Wolfgang (Austria), Sinemurian. Subclass PHeterostropha FISCHER, 1885 Order PAllogastropoda HASZPRUNAR, 1985 Superfamily PMathildoidea DALL,1889 Family PMathildidae DALL,1889 Genus ? Clathrobaculus COSSMANN, 1912 Type species: Cerithium Z}gK?g}- A- EUDES-DESLONGCHAMPS, 1842 Clathrobaculus? fistulosus (STOLICZKA, 1861) (Figure 94) 1861: Chemnitsna fistuiosa STOL. — STOLICZKA, p. 166, pl. 1, fig. 9. Lectotype — GBa 2008/69/8/1 (selected here). Material — A single fragment in the "originals collection", selected as lectotype and five other specimens of similar state of preservation in the "background" material. M e a s u r e m e n t s H HL HP D W lectotype *10 *5 *7.5 *4.5 Shape — Extremely turriculate shell of almost cylinrical coiling, which consisting of rather high, convex, bicarinate whorls and deeply impressed suture. Peripher}

7 of whorls coinciding with adapical carina at midwhorl; carinate angulation also at rim of base (line of suture). Base surface feebly concave; shell anomphalous. Peristome probably rounded. Columella thin and simple (cut to study by STOLICZKA), no trace of fold visible within shell interior. Sculpture — Four marked carina visible on whorls; one little below suture, another on periphery of whorls (at midwhorl), third one halfway between latter and fourth that running along outer rim of base and visible just above suture on earlier whorls. One additional carina visible on the base, near to peripheral angulation; other part of base badly damaged. Growth-lines rather strongly opisthocyrt and feebly opisthocline. Remarks — The habit of shell similar to that of Turritellidae? striata, main differences are in the number and strength of the dominantly spiral ornament. Further, better preserved material needed to find reliably the systematical place. Distribution — Hallstatt, Hierlatz Alpe, Late Sinemurian (Oxynotum Zone). => Figure 94 — Clathrobaculus? fistulosus (STOLICZKA, 1861), lectotype. — 9 a-b: copy of the original figures from STOLICZKA (1861) Tafel I; A: lectotype in natural size; B: lectotype in x3 magnification to display the ornament. =>=>=> Table 2 — A summary of results of the revision, and an inventory help to find the type specimens in STOLICZKA's (1861) gastropod "originals collections". — In the GBa inventory, he first three numbers, selected by slashes, indicate the species by the original order in STOLICZKA's (1861) paper; next number (if there is) indicate species, selected from the syntypes; last number without slash on its right side indicate specimen (like in the text above); N° 1 in each inventory unit is given to lectotypes/holotypes or other figured specimens. Fragmenta Palaeontologica Hungarica 26, 2008