Landouria parahyangensis, 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 : 32-34

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/41EEB2F2-7781-4D19-9F62-34316F374749
taxon LSID	lsid:zoobank.org:act:41EEB2F2-7781-4D19-9F62-34316F374749
treatment provided by	Plazi
scientific name	Landouria parahyangensis
status	sp. nov.

Treatment

Landouria parahyangensis View in CoL sp. nov.

urn:lsid:zoobank.org:act:41EEB2F2-7781-4D19-9F62-34316F374749

Figs 48 View Figs 48–51 , 54 View Figs 52–55 ; Tables 3–4 View Table 3 View Table 4

Diagnosis

Landouria parahyangensis sp. nov. is characterized by a sharply keeled, tightly coiled conical shell with a very wide umbilicus.

Etymology

Landouria parahyangensis sp. nov. is named after its occurrence in the mountainous region Parahyangan. In the Sundanese language, the name ʻParahyanganʼ means ʻthe abode of hyangs (gods)ʼ, which were supposed to reside in the mountain tops.

Material examined

Holotype

INDONESIA • holotype; West Java, Karangnunggal, surroundings of Pasir Taraje Cave , agroforestry; 7°39′58″ S, 108°07′01″ E; 243 m a.s.l.; 4 Jul. 2014; A.S. Nurinsiyah and T. Setiadi leg.; D = 15.0 mm, H = 8.4 mm; MZB 20429. GoogleMaps

Paratypes

INDONESIA – West Java • 3 spec.; Karangnunggal, surroundings of Kiara Jenggot Cave , agroforestry; 7°39′37″ S, 108°06′55″ E; 234 m a.s.l.; MZB 20431 GoogleMaps • 10 spec.; Karangnunggal, near Sela Dower Cave , agroforestry and bamboo; 7°40′00″ S, 108°07′00″ E; 237 m a.s.l.; MZB 20428 GoogleMaps • 5 spec.; same data as for preceding; ZMH 148186 View Materials GoogleMaps • 3 spec.; same data as for holotype; MZB 20430 GoogleMaps • 3 spec.; same data as for holotype; ZMH 148187 View Materials GoogleMaps • 1 spec.; Karangnunggal, surroundings of Liang Cai , agroforestry and shrubs; 7°40′01″ S, 108°07′03″ E; 237 m a.s.l.; ZMH 148185 View Materials GoogleMaps • 1 spec.; Tasikmalaya, Karangnunggal, mouth of Bojong Cave , agroforestry; 7°40′12″ S, 108°07′12″ E; 240 m a.s.l.; MZB 20427 GoogleMaps .

Description

SHELL (Fig. 48; Tables 3–4 View Table 3 View Table 4 ). Conical, with 6.5–7 hardly convex whorls; protoconch almost smooth; teleoconch with fine, irregular wrinkles; without distinct incised spiral lines; scaly processes sparse, only at periphery; tuberculate around umbilicus; brownish-corneous; body whorl sharply keeled; aperture rounded rhombic; upper insertion of peristome slightly descending; peristome expanded, reflexed and slightly thickened; umbilicus hardly eccentric, wide, comprising 39–45% of shell diameter, hardly obscured by columellar edge.

GENITALIA. Unknown.

Remarks

Landouria parahyangensis sp. nov. resembles L. epiplatia (Figs 26–28) with regard to the wide umbilicus. It differs from L. epiplatia in the less sharply keeled, higher, conical shell (H 8.4–9.3 mm vs 5.7–6.9 mm in L. epiplatia ; D/H 1.69–1.94 vs 2.03–2.94 in L. epiplatia ) with more whorls (6.5–7

vs 5.25–6.25 in L. epiplatia ). Landouria parahyangensis sp. nov. also resembles L. naggsi sp. nov. (Fig. 25). For differences, see remarks under that species.

Distribution

Landouria parahyangensis sp. nov. is endemic to the Karangnunggal karst area in West Java (Fig. 54).