Landouria zonifera, 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 : 60-61

Landouria zonifera sp. nov.

urn:lsid:zoobank.org:act:81A2A657-B12B-43BE-B19D-22AE36E2525C

Figs 44 , 54 , 68 , 82 ; Tables 3–4

Diagnosis

Landouria zonifera sp. nov. is characterized by a keeled, corneous shell with a brownish zone at the periphery, a wide umbilicus and a flagellum that is more than twice as long as the short epiphallus.

Etymology

Landouria zonifera sp. nov. is named after the brownish zone at its shell periphery (Latin: ʻzonaʼ = ʻzoneʼ, ʻferreʼ = ʻto carryʼ; used as an adjective).

Material examined

Holotype

INDONESIA • holotype (det. anat.); Yogyakarta, Kulonprogo, Sibolong , snakefruit plantation; 7°44′44″ S, 110°08′02″ E; 716 m a.s.l.; 9 Jan. 2013; A.S. Nurinsiyah and T. Setiadi leg.; D = 13.2 mm, H = 7.6 mm; MZB 17727 .

Paratypes

INDONESIA • 1 spec.; Yogyakarta, Kulonprogo, Sibolong, Sibolong Hill , agroforestry; 7°45′00″ S, 110°07′00″ E; 721 m a.s.l.; MZB 17762 • 13 spec.; same data as for holotype; MZB 17720 • 1 spec.; same data as for holotype; ZMH 133420 • 4 spec.; Kulonprogo, Jonggrangan ; 7°44′20″ S, 110°08′32″ E; 730 m a.s.l.; ZMH 140031 .

Description

SHELL (Fig. 82; Tables 3–4 ). Depressed conical, with 5.5 –5.75 hardly convex whorls; protoconch almost smooth; teleoconch with fine, irregular wrinkles and indistinct incised spiral lines; scaly processes sparse, mainly at periphery; tuberculate around umbilicus; corneous with a brownish zone at periphery; body whorl keeled; aperture rounded rhombic; upper insertion of peristome slightly descending; peristome expanded, reflexed and slightly thickened; umbilicus slightly eccentric, wide, comprising 40% of shell diameter, hardly obscured by columellar edge.

GENITALIA ( Figs 44 , 68 ; Table 4 ). Atrium short; penis long, cylindrical, slightly dilated at proximal end, without penis coecum; membranaceous sheath around distal part of penis connected with proximal part of epiphallus by tissue; penial retractor runs from diaphragm to proximal part of short, cylindrical epiphallus; flagellum more than twice as long as epiphallus, broadest near its proximal end, then abruptly tapering, slightly crenated, without node; vas deferens narrow and long; vagina very long, cylindrical; oviduct shorter, broad, proximally tapering; peduncle of bursa copulatrix subdivided into a broader, cylindrical distal part and a narrower, longer proximal part, ending in an elongate oval bursa beside albumen gland. Right ommatophoral retractor runs between penis and vagina.

Remarks

Landouria zonifera sp. nov. clusters in the molecular phylogeny ( Fig. 1 ) with L. abdidalem sp. nov. (Fig. 56) and L. tholiformis sp. nov. (Fig. 51). Landouria zonifera sp. nov. and L. abdidalem sp. nov. have overlapping ranges. Landouria zonifera sp. nov. differs from L. abdidalem sp. nov. in the smaller (D 12.5–13.2 mm vs 13.1–16.4 mm in L. abdidalem sp. nov.), more depressed (D/H 1.73–1.81 vs 1.93–2.14 in L. abdidalem sp. nov.), corneous shell with a brownish zone at the periphery, the shorter penis and a flagellum that is more than twice as long as the short epiphallus. Furthermore, Landouria zonifera sp. nov. occurs sympatrically with L. menorehensis sp. nov. ( Fig. 88 ) from which it can easily be distinguished by the keeled, depressed conical, corneous shell with a brownish zone at the periphery.

Distribution

Landouria zonifera sp. nov. is endemic to the Menoreh karst area (Fig. 54).

Figures

Figs 29–47. Flagella of species of Landouria from Java. 29. L. winteriana (Pfeiffer, 1842), West Java, Padalarang, Gunung Masigit (neotype, ZMA 376193a). 30. L. rotatoria (Pfeiffer, 1842), West Java, Gunung Salak, 1166 m a.s.l. (neotype, MZB 19205). 31. L. epiplatia (Möllendorff, 1897)?, West Java, Bogor, Gunung Gede (ZMH 79946). 32. L. nusakambangensis sp. nov., Central Java, Nusa Kambangan Island, nature monument Gligir (holotype, ZMA 412298a). 33. L. petrukensis sp. nov., Central Java, Karangbolong, way to Petruk Cave (holotype, MZB 19203). 34. L. tholiformis sp. nov., Yogyakarta, Gunung Kidul, Tepus, near Poktunggal Beach (holotype, MZB 17999). 35. L. abdidalem sp. nov., Yogyakarta, Kulonprogo, Sabrang Kidul (holotype, MZB 17664). 36. L. madurensis sp. nov., East Java, Madura Island, Sampang, Nepa Monkey lowland rainforest (paratype, MZB 19209). 37. L. sewuensis sp. nov., Yogyakarta, Gunung Kidul, Tepus, Mbajo Hill (holotype, MZB 19255). 38. L. sukoliloensis sp. nov., Central Java, Kayen, near Watu Payung (holotype, MZB 19219). 39. L. tonywhitteni sp. nov., Central Java, Taruman Village, near Sendang Sedayu (holotype, MZB 19214). 40. L. nodifera sp. nov., Central Java, Larangan Village, Lanang Spring (holotype, MZB 19227). 41. L. pacitanensis sp. nov., East Java, Pacitan, near Srau Beach (MZB 19231). 42. L. intumescens (Martens, 1867), East Java, Guwoterus (MZB 19207). 43. L. smimensis (Mousson, 1848), East Java, Tosari (ZMA 390881). 44. L. zonifera sp. nov., Yogyakarta, Kulonprogo, Sibolong (holotype, MZB 17727). 45. L. ciliocincta (Möllendorff, 1897), East Java, Malang, Kondangmerak (MZB 19211). 46. L. pakidulan sp. nov., Central Java, Nusa Kambangan Island, nature monument Gligir (holotype, ZMA 417011a). 47. L. menorehensis sp. nov., Yogyakarta, Kulonprogo, Sibolong (holotype, MZB 19201). Scale bar: 1 mm.

Figs 52–55 (opposite page). Distribution of species of Landouria in Java (10′ grid). 52. L. winteriana (Pfeiffer, 1842), L. naggsi sp. nov., L. nusakambangensis sp. nov., L. petrukensis sp. nov., L. tholiformis sp. nov., L. tonywhitteni sp. nov., L. smimensis (Mousson, 1848). 53. L. conoidea (Leschke, 1914), L. abdidalem sp. nov., L. sewuensis sp. nov., L. sukoliloensis sp. nov., L. pacitanensis sp. nov., L. intumescens (Martens, 1867), L. madurensis sp. nov. 54. L. rotatoria (Pfeiffer, 1842), L. nodifera sp. nov., L. parahyangensis sp. nov., L. schepmani (Möllendorff, 1897), L. zonifera sp. nov., L. ciliocincta (Möllendorff, 1897), L. pakidulan sp. nov. 55. L. epiplatia (Möllendorff, 1897), L. monticola van Benthem Jutting, 1950, L. davini Dharma, 2015, L. menorehensis sp. nov., L. dharmai sp. nov., L. moussoniana (Martens, 1867).

Figs 63–71. Genitalia of species of Landouria from Java. 63. L. tonywhitteni sp. nov., Central Java, Taruman Village, near Sendang Sedayu (holotype, MZB 19214). 64. L. nodifera sp. nov., Central Java, Larangan Village, Lanang Spring (holotype, MZB 19227). 65. L. pacitanensis sp. nov., East Java, Pacitan, near Srau Beach (MZB 19231). 66. L. intumescens (Martens, 1867), East Java, Guwoterus (MZB 19207). 67. L. smimensis (Mousson, 1848), East Java, Tosari (ZMA 390881). 68. L. zonifera sp. nov., Yogyakarta, Kulonprogo, Sibolong (holotype, MZB 17727). 69. L. ciliocincta (Möllendorff, 1897), East Java, Malang, Kondangmerak (MZB 19211). 70. L. pakidulan sp. nov., Central Java, Nusa Kambangan Island, nature monument Gligir (holotype, ZMA 417011a). 71. L. menorehensis sp. nov., Yogyakarta, Kulonprogo, Sibolong (holotype, MZB 19201). Scale bars: 1 mm.

Figs 81–84 (opposite page). Shells of species of Landouria from Java. 81. L. leucochila (Gude, 1905), Java (holotype, NHM 1922.8.29.87). 82. L. zonifera sp. nov., Yogyakarta, Kulonprogo, Sibolong (holotype, MZB 17727). 83. L. ciliocincta (Möllendorff, 1897), East Java, Zuider Mountains (lectotype, SMF 9176a). 84. L. ciliocincta, East Java, Malang, Kondangmerak, protected forest (MZB 19211). Scale bar: 5 mm.

Fig. 1. Bayesian 50% majority rule consensus tree based on mitochondrial 16S rDNA sequences of species of Landouria Godwin-Austen, 1918 with Mandarina suenoae Minato, 1978 and Euhadra peliomphala (Pfeiffer, 1850) as outgroups. All species of Landouria in this tree are from Java except L. omphalostoma Páll-Gergely & Hunyadi, 2013 from China and L. timorensis Köhler et al. in press, L. montana Köhler et al. in press and Landouria sp. nov. (= L. winteriana (non Pfeiffer, 1842) in Köhler et al. (in press)) from Timor. Values at the nodes represent Bayesian posterior probabilities (left) and maximum likelihood bootstrap values (right). Numbers after taxon names correspond to MZB and ZMH catalogue numbers, AM catalogue numbers or GenBank accession numbers (see Table 1).

Figs 85–88. Shells of species of Landouria from Java. 85. L. pakidulan sp. nov., Central Java, Nusa Kambangan Island, nature monument Gligir (holotype, ZMA 417011a). 86. L. dharmai sp. nov., East Java, Tulungagung, Popoh (holotype, MZB 21272). 87. L. davini Dharma, 2015, Central Java, Baturraden, Pancuran Tujuh, Gunung Slamet (holotype, MZB 17063). 88. L. menorehensis sp. nov., Yogyakarta, Kulonprogo, Sibolong (holotype, MZB 19201). Scale bar: 5 mm.