Revision of the genus Pseudopomatias and its relatives (Gastropoda: Cyclophoroidea: Pupinidae) Author Páll-Gergely, Barna Author Fehér, Zoltán Author Hunyadi, András Author Asami, Takahiro text Zootaxa 2015 3937 1 1 49 journal article 10.11646/zootaxa.3937.1.1 f0657878-554d-4991-9b89-30195335323e 1175-5326 237131 30026A41-4F7F-487F-8BE2-E7065FC3BD5F Pseudopomatias siyomensis Godwin-Austen, 1917 Fig. 10 C Pseudopomatias siyomensis Godwin-Austen, 1917 : p. 578, Figs 5 a, 6c. Pseudopomatias siyomensis — Gude 1921 , pp 160–161. Diagnosis. A large species with strong, widely-spaced ribs and well-developed peristome consisting of two readily distinguishable circles. Description. The only known shell is corroded, the shell colour and the sculpture of the protoconch could not be observed; shell slender turriform; whorls 9 in number and they are moderately bulging, separated by rather deep suture; teleoconch finely, regularly ribbed even behind the aperture, where the spaces between the ribs are wider than on the previous whorls; ribs seem to be stronger behind the aperture; aperture rounded with not angled columellar-parietal transition and slightly angled parietal-palatal transition; peristome very much thickened and slightly reflexed; it consists of a slimmer, protruding inner and a wider outer circle. Measurements (in mm). H: 12.2, D: 4.9 (n=1). Differential diagnosis. P. siyomensis is larger than P. himalayae , P. abletti n. sp. and P. harl i n. sp. Moreover, P. himalayae has a wider shell and more bulging whorls, and its aperture is oblique in lateral view; P. abletti n. sp. has "reversed oblique", rather triangular aperture; P. ha r l i n. sp. has turriform shell shape, lower ribs and a thinner apertural lip, which is not divided into two separated circles. P. rei schuetzi n. sp. is slightly more slender, has a thinner apertural rim and almost smooth neck area (last half of whorl). Type material. Siyom, Abor Hills, leg. Captain Oakes, coll. Godwin-Austen, NHMUK 3406.03.7.1. ( holotype ). Distribution. P. siyomensis is known from the type locality only. See also Fig. 2 and Table 3 .