Vargapupa biheli Páll-Gergely, 2015

Páll-Gergely, Barna, Fehér, Zoltán, Hunyadi, András & Asami, Takahiro, 2015, Revision of the genus Pseudopomatias and its relatives (Gastropoda: Cyclophoroidea: Pupinidae), Zootaxa 3937 (1), pp. 1-49 : 42

Vargapupa biheli Páll-Gergely , n. sp.

Fig. 8 D.

Pseudopomatias fulvus — Saurin 1953: p. 113.

Diagnosis. A medium sized, slender turriform species with a well developed basal keel.

Description. Shell turriform, widest at its base; only corroded shell material was available, therefore the original shell colour is unknown; there are 8–8.75, regularly increasing, rather flat or moderately bulging whorls; protoconch rather smooth with signs of small regular riblets; suture deeper on the upper whorls, especially at the protoconch; the coarse riblets are regular on the whole shell; sometimes on the last whorl they are less regular; keel blunt; the ribs of the body whorl are visible here too, especially close to the end of the keel; there are deep sutures on both sides of the keel; the keel starts from the back side of the most basal point of the peristome, and ends on the ventrolateral side; keel gradually becomes lower towards its end; keel visible inside the aperture as a shallow canal; aperture round with not angled columellar-parietal transition and slightly angled parietal-palatal transition; the lower incision (at the basal pont of the peristome) is the starting point of the keel; apertural rim thickened and slightly reflexed.

Measurements (in mm). H: 8.9–10.5, D: 3.5–3.9 (n=3).

Differential diagnosis. Vargapupa biheli n. sp. is much smaller than V. oharai n. sp., has narrower umbilicus, more rounded aperture and only one basal keel. The sutures situated on both side of the main keel are deeper.

Material. Laos, Tran Ninh Province, Pa Hia, Pah Xieng Tong, coll. Saurin, MNHN 2012–27020 (holotype), MNHN 2012–27021/9 (paratypes).

Type locality. Laos, Tran Ninh Province, Pa Hia, Pah Xieng Tong.

Etymology. The new species is named after the Biodiversity Heritage Library (www.biodiversitylibrary.org) to thank the multitude of rare literature made available to us. The name “ biheli ” is an acronym derived from the name BI odiversity HE ritage LI brary.

Distribution ( Fig. 15 ): The new species is known from the type locality only.

Figures

FIGURE 15. Distribution of Pseudopomatias and Vargapupa n. gen. species. Empty triangle, top up: Vargapupa biheli n. sp.; filled triangle, top down: Vargapupa oharai n. sp.; empty square: Pseudopomatias maasseni n. sp., open circle: P. sophiae n. sp., closed circle: P. linanprietoae n. sp.

FIGURE 8. A. Csomapupa luyorensis (Godwin-Austen, 1917), syntype, NHMUK 1903.7.1.3377; B. Cs. grandis (Godwin- Austen, 1876), syntype, NHMUK 1903.7.1.3438; C. Vargapupa oharai n. sp., holotype, HNHM 98837; D. Vargapupa biheli n. sp., holotype, MNHN 2012 – 27020; E. Nodopomatias oakesi (Godwin-Austen, 1917), syntype, NHMUK 1903.7.1.3086; F. Nodopomatias sibbumensis (Godwin-Austen, 1917), syntype, NHMUK 1903.7. 1.3146. Photos: A – B, E, F: H. Taylor; C – D: B. Páll-Gergely. Scale bars = 5 mm; the smaller one refers to the photos of the whole shell, the larger one refers to the photos showing the lateral and basal side of the shells.