Nodopomatias Gude, 1921

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 : 19

Genus Nodopomatias Gude, 1921

Eupomatias Godwin-Austen, 1917 : pp 579–580.

Nodopomatias Gude, 1921 : p 161. (nomen novum for Eupomatias Godwin-Austen, 1917 , non Eupomatias Wagner, 1897 )

Type species. Eupomatias sibbumensis Godwin-Austen, 1917 (by original designation).

Diagnosis. Shell medium sized to large, slender turriform, regularly ribbed; aperture round with slight upper incision (parietal-palatal transition); peristome double (the boundary between two circles clearly visible); an elevated keel runs around the umbilicus, starts from the most basal point of the peristome lip and terminates near the columellar-parietal transition of the peristome; operculum densely coiled, thin, membranous.

Differential diagnosis. Differs from Pseudopomatias and Csomapupa n. gen. by the presence of the basal keel. Tortulosa and Eucataulus have stronger basal keels and a basal canal in the aperture. The keel of Nodopomatias is lower and situated much closer to the umbilicus than that of in Vargapupa n. gen. The keel of Nodopomatias terminates just behind the peristome lip, whereas that of Vargapupa n. gen. flattens gradually on the ventral side of the body whorl. Vargapupa n. gen. has an incision on the basal part of the aperture, where the keel starts from, however this character may not be independent from the position of the basal keel. The peristome of Nodopomatias is "double" (the boundary between the two circles of the peristome clearly visible) and that of Vargapupa n. gen. is "simple" (consists of a single circle, or the boundary is not visible between the two circles of the peristome).

Content. oakesi ( Godwin-Austen 1917) , sibbumensis ( Godwin-Austen 1917) .

Distribution ( Fig. 7 ): Both species of Nodopomatias are known from the Abor Hills (Arunachal Pradesh, North-eastern India) (see also Fig. 2 and Table 3 ).

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 7. Distribution of Pseudopomatias Möllendorff 1885 (light grey area range), Csomapupa Páll-Gergely n. gen. (1), Nodopomatias Gude 1921 (2), and Vargapupa Páll-Gergely n. gen. (3).