Pseudopomatias reischuetzi 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 : 27-28

Pseudopomatias reischuetzi Páll-Gergely , n. sp.

Fig. 10 H

Diagnosis. A small to medium sized, glossy, rather spindle-shaped species with almost smooth neck region, rather triangular aperture (strongly angled parietal-palatal transition) and weak peristome margin.

Description. Shell greyish-yellowish, glossy, spindle shaped, widest at the penultimate whorl; the 7.25–8 (n=4) bulging whorls are separated by deep suture; protoconch consists of 1.5 whorls, the first half is very finely granulated, the remaining part is very finely, regularly ribbed; teleoconch also regularly, very finely ribbed; ribs low, not sharp; on the last half whorl the ribbed surface turns into a rather smooth surface having irregular growth lines; shell surface without spiral lines; aperture rather triangular, with smoothly angled columellar-parietal transition and sharply angled parietal-palatal transition; apertural rim slightly thickened and very slightly reflexed, consists of two circles; the inner circle is sharp in front and conspicuously protruding; the outer one being wider; parietal callus normally developed; there are 2–3 inner palatal plicae visible above the umbilicus through the translucent shell.

Measurements (in mm). H: 7.3–8.9, D: 3.3–3.7 (n=3).

Differential diagnosis. P. reischuetzi n. sp. differs from P. harli n. sp. and P. pleurophorus by the presence of plicae inside the last whorl, the more slender, spindle-shaped shell, the triangular aperture and the absence of spiral sculpture. P. h i m al ay a e is smaller, has much stronger and sharper ribs, especially on the neck region, it has a rounded aperture and also lacks the plicae. See also under P. si yomensis.

Material. Lhota Naga, Godwin-Austen coll., NHMUK 1903.7.1.1549/1 (holotype), NHMUK 1903.7.1.1549/ 2–4 (3 paratypes).

Type locality. Lhota Naga.

Etymology. The new species is dedicated to and named after Alexander Reischütz, Austrian malacologist, the friend of the first author.

Distribution. Only the type series is known, which was collected in "Lhota Naga", Naga Hills. See also Fig. 2 and Table 3 .

Remarks. There may be more, deeper situated plicae within the last whorl that are visible only by breaking the shells (see Notes on useful shell characters).

Figures

FIGURE 2. Different areas of north-eastern India mentioned in the text. See also Table 3. 1: Sikkim, 2: Aka Hills, 3: Garo Hills, 4: Khasi Hills, 5: Dafla Hills, 6: Abor Hills, 7: Naga Hills.

FIGURE 10. A. Pseudopomatias prestoni n. sp., holotype, NHMUK 20130423.1; B. P. prestoni n. sp., Indien, NHMW 109194; C. P. siyomensis Godwin-Austen, 1917, holotype, NHMUK 3406.03.7.1; D. P. himalayae, Himalaya, Darjiling, NHMUK 1860.6.27.32.1; E. P. himalayae, syntype, UMZC 102695; F. P. peguensis (Theobald, 1864), Pegu, Burmah, NMW. 1894.015; G. P. shanensis n. sp. holotype, NHMUK 1903.7.1.1631.1; H. P. reischuetzi n. sp., holotype, NHMUK 1903.7. 1.1549. 1. Photos: A, C – D, G – H: H. Taylor; B: J. Harl; E: J. Gundry; F: B. Rowson. 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.