Landouria naggsi, Nurinsiyah & Neiber & Hausdorf, 2019

Nurinsiyah, Ayu Savitri, Neiber, Marco T. & Hausdorf, Bernhard, 2019, Revision of the land snail genus Landouria Godwin-Austen, 1918 (Gastropoda, Camaenidae) from Java, European Journal of Taxonomy 526, pp. 1-73 : 27-29

publication ID	https://doi.org/ 10.5852/ejt.2019.526
publication LSID	lsid:zoobank.org:pub:3FFC527D-E9CA-4D9F-BF59-076FA60171AC
persistent identifier	https://treatment.plazi.org/id/4EF9E468-DDEF-460D-939C-7D9C86254CF4
taxon LSID	lsid:zoobank.org:act:4EF9E468-DDEF-460D-939C-7D9C86254CF4
treatment provided by	Plazi
scientific name	Landouria naggsi
status	sp. nov.

Treatment

Landouria naggsi View in CoL sp. nov.

urn:lsid:zoobank.org:act:4EF9E468-DDEF-460D-939C-7D9C86254CF4

Figs 25 View Figs 25–28 , 52 View Figs 52–55 ; Tables 3–4 View Table 3 View Table 4

Diagnosis

Landouria naggsi sp. nov. is characterized by an angular, tightly coiled, high conical shell with scales all over the teleoconch.

Etymology

Landouria naggsi sp. nov. is named in honour of the British malacologist Fred Naggs, who brought the authors of this study together.

Material examined

Holotype

INDONESIA • holotype; West Java, Cibitung, near Cikaso Waterfall , teak agroforestry; 7°21′41″ S, 106°37′10″ E; 47 m a.s.l.; 5 Jul. 2015; A.S. Nurinsiyah and T. Setiadi leg.; D = 11.8 mm, H = 9.8 mm; MZB 20424. GoogleMaps

Paratypes INDONESIA – West Java • 1 spec.; Cibitung, near Cikaso Waterfall , riparian (high shrubs); 7°21′40″ S, 106°37′05″ E; 61 m a.s.l.; MZB 20426 GoogleMaps • 1 spec.; same data as for preceding; ZMH GoogleMaps

148184 • 3 spec.; same data as for holotype; MZB 20425 GoogleMaps • 2 spec.; same data as for holotype; ZMH 148183 View Materials GoogleMaps .

Description

SHELL (Fig. 25; Tables 3–4 View Table 3 View Table 4 ). Conical, with 6.25–7 slightly convex whorls; protoconch almost smooth; teleoconch with irregular wrinkles; incised spiral lines not discernible; scales all over teleoconch; tuberculate around umbilicus; brownish-corneous; body whorl angular; aperture oval; upper insertion of peristome slightly descending; peristome expanded, reflexed and slightly thickened; umbilicus hardly eccentric, wide, comprising 28–33% of shell diameter, hardly obscured by columellar edge.

GENITALIA. Unknown.

Remarks

Landouria naggsi sp. nov. resembles L. parahyangensis sp. nov. (Fig. 48), from which it differs in the smaller (D 11.6–14.0 mm vs 14.7–16.9 mm in L. parahyangensis sp. nov.), higher conical (D/H: 1.21– 1.37 vs 1.69–1.94 in L. parahyangensis sp. nov.), less sharply keeled shell with a narrower umbilicus (U/D 0.28–0.33 vs 0.39–0.45 in L. parahyangensis sp. nov.) and in having scales all over the teleoconch.

With regard to the conical shell form L. naggsi sp. nov. resembles L. conoidea ( Leschke, 1914) ( Fig. 4 View Figs 2–5 ). For differences, see remarks under that species.

Distribution

Landouria naggsi sp. nov. is known only from the surroundings of Cikaso Waterfall in Sukabumi Regency (Fig. 52).