Rowsonia beddomei (W.T. Blanford, 1881 )

Páll-Gergely, Barna, Hunyadi, András, Grego, Jozef, Sajan, Sheikh, Tripathy, Basudev & Chen, Zhe-Yu, 2020, A review of the Diapheridae (Gastropoda: Eupulmonata: Streptaxoidea), with special emphasis on India and Myanmar, Raffles Bulletin of Zoology 68, pp. 682-718 : 701-702

Rowsonia beddomei (W.T. Blanford, 1881)

( Figs. 12J–Q , 22B )

Ennea beddomei W.T. Blanford, 1881: 210 .

Ennea beddomii (sic) — W.T. Blanford, 1899: 770, pl. 50, figs. 20, 21.

Ennea (Indoennea) beddomei — Kobelt, 1904b: 161.

Ennea (Huttonella) beddomii (sic) — W.T. Blanford & Godwin- Austen, 1908: 23.

Sinoennea beddomei — Richardson, 1988: 154.

Gulella (Huttonella) beddomei — Ramakrishna et al., 2010: 192.

Sinoennea beddomei — Raheem et al., 2014: 143, fig. 93D, E.

Type locality. “In montibus ‘Sivagiri’ dictis Indiae meridionalis.”

Material examined. Lectotype, designated in Raheem et al. (2014) ( NHMUK 1875.03.06.75/1) + 3 paralectotypes ( NHMUK 1876.3.6.75), Sivagherry Hills, India; 2 syntypes of “ var. minima ” ( NHMUK 1906.1.1.952), Sivagiri Hills, Tinevelly, 4,000’; 4 shells ( NHMUK 1912.4.16.99), Sivagiri, Shevroys, S. India, coll. Col. R. Beddome.

Remarks. Aperture adnate, parietal callus indicated by a colourless calcareous layer. No swelling visible behind peristome. Outer part of parietal lamella slightly curved towards the palatal wall; deeper inside the curve is as strong as if it were broken at a right angle. On the other side of this strongly curved portion there is a slight projection into the other (parietal) direction. Columellar lamella blade-like. Palatal wall with three elongated folds: upper fold facing the curved parietal lamella, middle fold much shorter, situated deeper, slightly below the strongly curved part of the parietal lamella, lower fold stronger (more elevated) than the upper and middle ones, situated between the middle palatal fold and the columellar lamella.

Figures

Fig. 12. A–G, Platylennea subcostulata (W.T. Blanford, 1881), NHMUK 1892.4.9.46–56, specimen1; H–I, NHMUK 1892.4.9.46–56, specimen2; J–Q, Rowsonia beddomei (W.T. Blanford, 1881), NHMUK 1912.4.16.99. All scales represent 1 mm; scale “a” refers to fig. A, scale “b” refers to figs. B–I, scale “c” refers to fig. K, scale “d” refers to figs. L–Q.

Fig. 22. Apertures of Streptaxidae (A) and Diapheridae (B–P). A, Gulella (Huttonella) bicolor (Hutton, 1834); B, Rowsonia beddomei (W.T. Blanford, 1881); C, Platylennea subcostulata (W.T. Blanford, 1881); D, Pupennea planguncula (Benson, 1863); E, Diaphera polita, Páll-Gergely new species; F, Diaphera cylindrelloidea (Stoliczka, 1871); G, Bruggennea cf. bongi (Dance, 1970), H, Parasinoennea ovulum (Bavay & Dautzenberg, 1912); I, Sinoennea otostoma Páll-Gergely, A. Reischütz & Maassen in Páll-Gergely, Reischütz, Maassen, Grego & Hunyadi, 2020; J, Sinoennea infantilis Páll-Gergely & Grego in Páll-Gergely et al., 2020; K, Sinoennea variabilis Páll-Gergely & Grego in Páll-Gergely et al., 2020; L, Sinoennea sutchariti Páll-Gergely & Hunyadi in Páll-Gergely et al., 2020; M, Sinoennea montawana Páll-Gergely & Hunyadi, new species; N, Sinoennea angustistoma Páll-Gergely, A. Reischütz & Maassen in Páll-Gergely et al., 2020, O, Sinoennea woodthorpei (Peile, 1929); P, Sinoennea fartoidea (Theobald, 1870). Not to scale.