Euthria yesimae, Harzhauser & Landau, 2024

Harzhauser, Mathias & Landau, Bernard M., 2024, The Colubrariidae, Eosiphonidae, Melongenidae, Pisaniidae, Prodotiidae and Tudiclidae (Gastropoda, Buccinoidea) of the Miocene Paratethys Sea, Zootaxa 5427 (1), pp. 1-110 : 91-93

publication ID	https://doi.org/ 10.11646/zootaxa.5427.1.1
publication LSID	lsid:zoobank.org:pub:923206B0-E8C5-4FD5-B882-55009ABB0282
DOI	https://doi.org/10.5281/zenodo.10841159
persistent identifier	https://treatment.plazi.org/id/03CE9F1C-FFC0-0C1B-FF65-FB03ED98FD2E
treatment provided by	Plazi
scientific name	Euthria yesimae
status	sp. nov.

Treatment

Euthria yesimae nov. sp.

Figs 34K View FIGURE 34 , 48A–C View FIGURE 48

Euthria (Euthria) cornea View in CoL mut. curvirostris Grateloup View in CoL — Erünal-Erentöz 1958: 59, pl. 9, figs 8–10 [non Euthria curvirostris ( Grateloup, 1845) View in CoL ].

Euthria curvirostris ( Grateloup, 1845) View in CoL — Landau et al. 2013: 165, pl. 25, figs 2, 3, pl. 64, fig. 5, pl. 79, fig. 10 [non Euthria curvirostris ( Grateloup, 1845) View in CoL ].

Type material. Holotype: NHMW 1847 View Materials /0058/0838, SL: 40.5 mm, MD: 20.1 mm, Pınarlar Yaylası , Akpınar ( Turkey), Figs 48A View FIGURE 48 1 –A View FIGURE 1 3 View FIGURE 3 . Paratypes: NHMW 1847 View Materials /0058/0839, SL: 44.1 mm , MD: 21.6 mm, Pınarlar Yaylası , Akpınar ( Turkey), Figs 48B View FIGURE 48 1 –B View FIGURE 1 2 View FIGURE 2 . RGM 777 View Materials 871, SL: 38.5 mm , MD: 20.3 mm, Lale on Mut road, Figs 48C View FIGURE 48 1 –C View FIGURE 1 3 View FIGURE 3 . RGM 794 View Materials 572, Pınarlar Yaylası , Akpınar ( Turkey), Fig. 34K View FIGURE 34 .

Type locality. Seyithasan ( Turkey) .

Type stratum. Silt and clay of the Týrtar Formation.

Age. Middle Miocene, Serravallian.

Etymology. In honor of YeŞim Büyükmeriç (Zonguldak Bülent Ecevit Üniversitesi, Zonguldak, Turkey) for her help during fieldwork in the Karaman Basin.

Diagnosis. Medium-sized, moderately broad fusiform shell with conical spire and smooth, moderately inflated, strongly constricted last whorl, axial and spiral sculpture restricted to first three to four teleoconch whorls, whorl profile changing from weakly convex to moderately convex with shallowly concave subsutural ramp on last spire whorl, aperture with prominent denticle at angulation of columella, siphonal canal moderately long, deflected.

Description. Medium-sized, moderately broad fusiform shell with conical spire, of up to seven teleoconch whorls; apical angle ~56°. Protoconch paucispiral of 1.5 convex whorls; diameter: 1100 μm. Transition to teleoconch marked by weak axial ribs. Early teleoconch whorls weakly convex. First three teleoconch whorls with moderately prominent axial ribs, fading on fourth whorl, overrun by delicate spiral cords, fading on fourth to fifth whorl. Suture narrowly incised. Whorl profile changing on sixth teleoconch whorl by appearance of shallowly concave subsutural ramp and slight swelling on abapical half of whorl, making whorl profile distinctly convex slightly below mid-whorl forming periphery. Last whorl attaining ~70% of total height, with poorly delimited, narrow, slightly concave subsutural area, moderately inflated mid-whorl, strongly constricted at base, smooth except for indistinct, faint, widely spaced spiral cords over base; fasciole slightly swollen with moderately prominent growth lines. Aperture pyriform, moderately wide. Columellar callus adherent. Columella strongly and broadly excavated, angled at transition to siphonal canal, prominent denticle at angulation. Low, broad parietal swelling. Anal canal moderately incised. No anal denticle. Outer lip with thin peristome and variable number of prominent lirae reaching deep within aperture. Siphonal canal deflected to the left, moderately long and wide, weakly recurved, deeply notched. Color pattern under UV light consisting of blotches and flammules of irregular size and disposition.

Discussion. Euthria yesimae nov. sp. was confused by us with Euthria curvirostris ( Grateloup, 1845) ( Landau et al. 2013) . However, E. curvirostris , from the Serravallian of the Aquitanian Basin ( France), is slenderer, has a higher spire, a less inflated last whorl, a longer and strongly recurved siphonal canal and prominent spiral sculpture. (see Peyrot 1928: pl. 5, figs 45–46). The Middle Miocene, Paratethyan Euthria odiosa nov. sp. has less convex whorls, a less concave subsutural ramp, a less inflated last whorl and a less constricted base. Euthria depressospira Bandat, 1943 differs in its ovate outline with weak, adpressed suture, higher last whorl and less constricted base. Euthria (Euthria) cornea (Linné) var. curvirostris sensu Symeonidis (1966: 281 , pl. 9, figs 6–7), from the Serravallian of Crete, differs in its less convex whorls and less constricted base.

Proto-Mediterranean Sea. Serravallian (Middle Miocene): Karaman Basin: Pınarlar Yaylası, Akpınar, Lale ( Turkey) ( Landau et al. 2013).