Platylennea subcostulata (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 : 698

Platylennea subcostulata (W.T. Blanford, 1881)

( Figs. 12A–I , 22C )

Ennea subcostulata W.T. Blanford, 1881: 206 , pl. 2, fig. 14.

Ennea (Indoennea) subcostulata — Kobelt, 1904b: 159, pl. 20, fig. 16.

Ennea (Huttonella) subcostulata — W.T. Blanford & Godwin- Austen, 1908: 21.

Indoennea subcostulata — Peile, 1929a: fig. 4 (drawings show the dentate juvenile shell).

Gulella subcostulata — Richardson, 1988: 124.

Gulella (Huttonella) subcostulata — Ramakrishna et al., 2010: 194.

Sinoennea subcostulata — Raheem et al., 2014: 146, fig. 95E.

Type locality. “In montibus ‘Shevrai’ vel ‘Shevroy’ dictis, haud procul ad urbe Salem, Indiae meridionalis.”

Material examined. Lectotype, designated in Raheem et al. (2014) ( NHMUK 1906.1.1.954), Shevroy Hills, coll. W. Blanford; 11 shells ( NHMUK 1892.4.9.46–56), Shevaroy Hills, S. India, at 5,000’, coll. Henderson.

Remarks. This species clearly fits in Platylennea , new genus, based on the general shell and aperture shape, the bifurcated parietal lamella, the two basal denticles situated close to the peristome edge, and the presence of a small columellar denticle anterior to 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.