Euchondrus adwani Eike Neubert &amp; Zuhair Amr 2016, n. sp.
Creators: name: Neubert, Eike
name: Amr, Zuhair
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Stylommatophora
Enidae
Euchondrus
Euchondrus adwani

description: <i>Euchondrus adwani</i> n. sp. (Figure 1) Material: Holotype NMBE 539263; paratype NMBE 539264 /1. Type locality: Syria, surrounding of the monastery of Deir Moussa, 34.0219°N 36.8423°E, 1300 m a.s.l., 11.iii. 2010, leg. Adwan Shehab. *Corresponding author. Email: eike.neubert@nmbe.ch © 2016 Taylor &amp; Francis Measurements (holotype): Height = 11.04 mm; diameter = 4.13 mm; peristome height = 4.03 mm; peristome diameter = 2.97 mm; number of whorls = 8. Diagnosis. <i>Euchondrus adwani</i> n. sp. differs from the widespread <i>E. septemdentatus</i> by its conical shell (broadly oval in <i>E. septemdentatus</i>), its flat suture and teleoconch whorls (suture deeper, whorls much more rounded in <i>E. septemdentatus</i>), the heavy palatal labial callus (weaker in <i>E. septemdentatus</i>), the bar-like subangularis (weaker in <i>E. septemdentatus</i>), and the keeled last whorl (rounded in <i>E. septemdentatus</i>). Description: Shell solid, dextral, cylindrical, upper part cylindro-conical in outline; shell pale brownish to horny yellow coloured; 8 rather flat-sided teleoconch whorls, suture flat with a distinct white sutural thread; teleoconch smooth, glossy, last whorl with fine, straight and irregularly spaced striae; aperture subtriangular, peristome strongly thickened by a labial callus, moderately reflected, with a rich dentition (description clockwise): palatum with a small suturalis followed by a conical palatalis superior and a broad infrapalatalis with the latter two denticles placed on a thick callus; columellar side with a basalis and a straight columellaris; parietum with a strong and long parietalis, bordered by a small spiralis, subangularis large, bar-like, left side of the parietum with another small denticle at the attachment site of the peristome; last teleoconch whorl dorsally compressed forming a distinct blunt ridge (arrows); umbilicus slit-like open, periomphalum large, dish-like. Remarks: This species shows some superficial similarities with <i>E. desertorum</i> Rochanaburananda in Forcart, 1981 (Figure 2), which is endemic to the Negev Desert (Heller, 2009). Both species have a straight conical shell, but <i>E. desertorum</i> is considerably larger than <i>E. adwani</i> n. sp. and its aperture is rounded and not subtriangular. It also differs in the formation of the dentition: in <i>E. desertorum</i>, the infrapalatalis is bifid (simple in <i>E. adwani</i>), the spiralis is large and connected to the parietalis (small and disconnected in <i>E. adwani</i>), and the subangularis is weaker (very strong in <i>E. adwani</i>). The last whorl of <i>E. adwani</i> displays a distinct keel with an enlarged periomphalum, while in <i>E. desertorum</i> the dorsum is rounded, and the periomphalum is much smaller. Etymology: This species is named in honour of Dr. Adwan Shawabi, who was a keen collector of molluscs from Syria, and a personal friend, and who was killed in February 2015 in the Syrian civil war (Amr, 2015).
description: Published as part of <i>Eike Neubert &amp; Zuhair Amr, 2016, On a new species of Euchondrus Boettger, 1883 from Syria (Pulmonata: Enidae), pp. 58-60 in Zoology in the Middle East 62</i> on pages 58-60, DOI: 10.1080/09397140.2015.1132564, http://zenodo.org/record/887037
description: {"references": ["Forcart, L. (1981): Neubeschreibungen von Landschnecken aus Palastina. Basteria, 45, 97 - 108.", "Heller, J. (2009): Land snails of the land of Israel. Natural history and field guide. Sofia: Pensoft.", "Amr, Z. (2015): In memory of Dr. Adwan Shehab. Zoology in the Middle East, 61, 294."]}