Bittium agriense Báldi, 1966

Bittium agriense Báldi, 1966

Fig. 4A View FIGURE 4

* Bittium spina agriense n. subsp. — Báldi 1966: 87, pl. 2, fig. 4.

Bittium spina agriense Báldi, 1966 — Báldi 1973: 262, pl. 29, fig. 5.

Bittium spina agriense Báldi, 1966 — Pálfy et al. 2008: 81.

Type material. Holotype M 65.1083 , SL: 3.7 mm, MD: 1.4 mm, Hungarian Natural History Museum , Budapest ( Hungary), illustrated in Báldi (1966: pl. 2, fig. 4). Wind brickyard, Eger ( Hungary), Late Oligocene, Egerian, Fig. 4A View FIGURE 4 .

Revised description. Minute, moderately slender shell of more than nine teleoconch whorls; apical angle 25°. Protoconch unknown. Early teleoconch whorls with two prominent spiral cords placed mid-whorl and slightly above abapical suture. Third spiral cord appears on fourth whorl placed on narrow, subsutural ramp. Spiral cords with pointed tubercles. Fourth smooth spiral cord appears on seventh whorl just above abapical suture. Whorl profile convex narrowly constricted above abapical suture. Suture moderately incised. Last whorl with varix; aperture and base not preserved.

Discussion. This species was established as subspecies of Argyropeza spina ( Hörnes, 1855) but is clearly unrelated. Bittium agriense Báldi, 1966 is slightly reminiscent of Bittium grinzingense sp. nov., but is much smaller at the same number of whorls, has less convex whorls, and the subsutural ramp of early teleoconch whorls is much narrower.

Paleoenvironment. Unknown.

Central Paratethys: Egerian (Late Oligocene/Early Miocene): Hungarian Paleogene Basin: Eger ( Hungary) ( Báldi 1973).