Rissoina (Rissoina) vindobonensis Sacco, 1895

TĂMAȘ A., TĂMAȘ D. M. & POPA M. V., 2013, Badenian Small Gastropods From Lăpugiu De Sus (Făget Basin, Romania). Rissoidae Family, Acta Palaeontologica Romaniae 9 (1), pp. 57-66 : 63

Rissoina (Rissoina) vindobonensis Sacco, 1895

Fig. 3e

1895 Rissoina bruguieri vindobonensis Sacc. - Sacco, 18, p. 35

1960 Rissoina (Rissoina) vindobonensis (Sacco) - Kojumdgieva and Strachimirov, p.102, pl. 30, fig. 20 a, b 1975 Rissoina (Rissoina) vindobonensis Sacco - Bałuk, p. 91, pl. 10, fig. 6,7

1981 Rissoina (Rissoina) vindobonensis (Sacco) - Krach, p 52, pl. 15, fig. 23, 24, 29, 30

Material: one specimen from L5 ( PMBBU 23863 ) Description: Slender, elongated turriculated shell with more than six whorls; up to 4.3 mm in height and 1.90 mm in width .

Protoconch not fully preserved. Teleoconch with 5.5 slightly-convex whorls and incised suture. Ornamentation consisting of opisthocline axial ribs, more pronounced on the first whorls and finer on the last one. Fine spiral threads in the interspaces between the axial rib area. The last whorl represents 60% of the total shell height. Ornamentation is represented by 22 axial ribs alternating with fine spiral threads. The shell’s base is ornamented with fine more pronounced spiral threads. Large and inclined aperture; covered umbilicus and external lip thickened by varix.

Distribution: identified in: Polonia ( Bałuk, 1975; Krach, 1981), Bulgaria ( Kojumdgieva and Strachimirov, 1960).

Figures

Fig. 3 - a Alvania sp. b Manzonia (Manzonia) scalaris (Dubois, 1831). c Manzonia sp. d Rissoina (Phosinella) steinabrunnensis Sacco 1895. e Rissoina (Rissoina) vindobonensis Sacco, 1895. f Rissoina (Rissoina) pusilla (Brocchi, 1814).