Szabó János szerk.: Fragmenta Mineralogica Et Palaentologica 26. 2008. (Budapest, 2008)
Ataphrus aciculus (HÖRNES, 1853) (Figure 50) 1853: Trochus aciculus HÖRNES — HÖRNES, p. 759. 1861: Trochus aäculus HÖRNES — STOLICZKA, p. 173, pi. 2, fig. 8. 1876: Turbo aäculus STOLICZKA — TATE, p. 344, pi. 9, fig. 22. non 1983: Lemsiella acicula (HÖRNES, 1853) — SZABÓ, p. 29, pl. 1, figs 4-5. L ectotvpe-GBa 2008/69/22/1 (selected here). Material — Thirty-three specimens (GBa). Measurements H HL HP lectotype *17 11.5 8.5 Shape — Medium sized species of rather high turbiniform shell, having moderately convex whorls with narrow concave belt just below suture. Last whorl subangulate at periphery except near peristome where angulation disappears. Concomittandy growth direction deviates from previous mode and shell extending mainly downward but also abaxially (like trumpet). Base convex and anomphalous. Adult peristome axially elongate, continuous at parietal region. Columellar lip thick and having a convex outer face with roundish top at foot of columella. Outer face delimited from base by wide "C"-shaped angulation. Sculpture — Disregarding very fine, prosoclineprosocyrt growth-lines and obscure spiral lines, visible under strong magnification, shell completely smooth. Remarks — In the given state of preservation, the Lect M a t e r i a 1 — Two damaged specimens. Measurements H HL HP lectotype *15 7.6 5.9 paralectotype **14.5 *6 Shape — Feebly cyrtoconoidal shell with moderately convex whorls, separated by impressed suture. Protoconch not found. Periphery rounded-angular. Angulation disappearing on last whorl near peristome, simultaneously last whorl abapically extending. Peristome itself strongly prosocline as suggested by remnants. No intact peristome part found but cross-sections of columellar lip indicate strongly thickened part (swelling?) below base. Sculpture — Growth-lines hardly visible; obscure pieces indicate them as strongly prosocline on whorls and opisthocline on base. Remarks — The conical shape resembles also Proconulus because of the relatively numerous low whorls. Though undamaged peristome has not been found, both specimens show cross-section of inner lip with wellde\ r eloped swelling at columellar region, characteristic in Ataphrus (Ataphrus). The shell form reminds also Tewisiella (Ataphridae) but no trace of the heavy basal callosity of D W AA AL 12 7 50° 50° inner lip not completely cleanable and the (sub)generic characters not well exposed, howe\ r er, the visible part suggests belonging to subgenus Ataphrus and not to Endianaulax. Paralectotypes preserved blunt apex. Distribution — Hallstatt, Hierlatz Alpe, Upper Sinemurian (Oxynotum Zone). Figure 50 — Ataphrus aciculus (HÖRNES, 1853), lectotype. — 8 a-b: copy of STOLICZKA's (1861) figures from Tafel II; A-C: lectotype in apertural (A), basal (B) and dorsal (C) views, xl. D W AA AL 9.9 5.1 *52° 41° *8.8 *4.8 *46° this latter genus has been found. Distribution — Schafberg at St. Wolfgang (Austria); Upper Pliensbachian. Figure 51 — Ataphrus? laeviusculus (STOLICZKA, 1861), lectotype. — 12 a-b: copy of STOLICZKA's (1861) drawings from Tafel II; A—C: lectotype in dorsal view (A), in lateral view to show the strongly prosocline peristome (B), and basal view (C), xl; D: magnified dorsal view, x 2.5. Ataphrus? laeviusculus (STOLICZKA, 1861) (Figure 51) 1861: Trochus laeviusculus STOL. — STOLICZKA, p. 168, pi. 2, fig. 12. 2003: Ataphrus? laeviusculus (STOLICZKA, 1861) — S/.ABÓ in VÖRÖS et. al., p. 61, pl. 5: 11-13. o t y p e — NhM 1861/0034/0011 (1) (selected here), paralectotype: NhM 1861/0034/0011 (2).
