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

Family Gosseletinidae WENZ, 1938 Genus Cyclostomaria SZABÓ, 1980 Type species — Cyclostomaria monarii SZAB('), 2008. [Type species was revised and fixed by SZABÓ (2008)] Cyclostomaria monarii SZABÓ, 2008 (Figure 21) non 1853: Pleurotomaria Suessii HÖRNES — HÖRNES, p. 762. 1911: Pleurotomaria A/ZOT/HORNHS

— M. Gl'.MMI'J.I. ARC), p. 213, pi. 10, figs 10-12. 1980: Cyclostomaria suessii (HÖRNES, 1853) — SZABÓ, p. 64, pl. 4, fig. 4. cf. 1991: Cyclostomaria sp. — C( >NTl & MONARI, p. 264, pi. 5, figs 6-8. 2003: Cyclostomaria sp. — SZABÓ in VÖRÖS et al., p. 61. 2008: Cyclostomaria monarii n. sp. — Sz.AB('), p. 174, figs 4: 1-7. Material — Seven, damaged specimens; the earliest and terminal shell parts are poorly known (types in the HGM). Measurements H HL HP D W AA AL holotype **25 **22.5 **18.5 *45.5 **19 150° paratype *10.5 *9 **8.5 *19.2 130° 165° Figure 21 — Cyclostomaria monarii SZABÓ, 2008 (refiguration of the type specimens) — A-E: holotype (HGM J 08.1.1.), apical (A), basal (B), dorsal (C) and natural cross section (D) view; Xl; E: magnified apical view to show details of the ornament, x2; F—G: a juvenile specimen (paratype HGMJ 08.1.2.) in apical (F) and side (G) views, x2.5. Shape — Low spired, nearly discoidal form with acute apex, and rapidly expanding, convex whorls, having suborbicular cross-section. Sutures deeply impressed to canaliculate both on spiral and umbilical side. Selenizone runs near highest adapical line of whorls; its shape concave initially but changing into convex on last whorl. Peripher}

7 rounded; base convex and (extreme) broadly phaneromphalous with flattened, spiral swelling that may be regarded as rim of umbilicus. Peristome unknown. Sculpture — Whorls covered by spiral cords, lacking from selenizone, and intersecting collabral cords, disrupted at selenizone. Juvenile shell has regular network ornament but sculpture elements become flattened, irregular, and collabral cords fade out in last growth phase,