GlöerPeterPešićVladimirThe freshwater snails (Gastropoda) of Iran, with descriptions of two new genera and eight new speciesZookeys3920122012219116110.3897/zookeys.219.3406 Valvata nowshahrensis urn:lsid:zoobank.org:act:944E6EE3-B23C-43FB-A305-882A4D4CF3D9 http://species-id.net/wiki/Valvata_nowshahrensis sp. n.Fig. 14a–cType locality.

Mazandaran Province, Nowshahr city, pond near the Caspian See, 51°31'E, 36°38'N, 18 June 2005.

Holotype

(ZMH 79376): Shell diameter 3.3 mm, height 2.3 mm.

Paratypes

(ZMH 79377): 2 specimens from type locality; [2 ex.], Kermanshah Province: IR105-05.

Etymology.

Named after the region, where the species was collected.

Description.

The yellowish shell is translucent with 3 circular whorls. The umbilicus is wide, and the first whorl is visible through the umbilicus. The surface is glossy with very fine ribs. Shell diameter 3.2–3.3 mm, height 2.3 mm.

Differentiating features.

The new species can be distinguished from Valvata piscinalis by its larger umbilicus and from Valvata cristata by its higher spire.

Remarks.

This species has possibly been depicted by Mansoorian (1994) and confused with Valvata cristata.

Associated species.

Pseudobithynia mazandaranensis sp. n.,Planorbis carinatus, Anisus sp., Valvata cristata, Hippeutis complanatus

Distribution.

Iran: Mazandaran and Kermanshah Provinces.

Valvata nowshahrensis sp. n. a shell b ventral view on the umbilicus c head with penis in situ.

MansoorianA (1994) Freshwater snails of Iran. Scientific publication of School of Public Health & Institute of Public Health Research, Technical series 2145: 1374.