Landouria dharmai sp. nov.

urn:lsid:zoobank.org:act: B4620BC6-38C3-4E3D-AA72-46B82D2D1CB8

Figs 55, 86; Tables 3–4

Landouria ciliocincta – Dharma 2015: 8, pl. 1, fig. 3 (in part). (not Möllendorff, 1897)

Diagnosis

Landouria dharmai sp. nov. is characterized by a conical, whitish shell with a reddish-brown band at the angular periphery and a moderately wide umbilicus.

Etymology

Landouria dharmai sp. nov. is named in honour of the Indonesian malacologist Bunjamin Dharma, who discovered this species.

Material examined

Holotype

INDONESIA • holotype (voucher for L. ciliocincta in Dharma 2015: pl. 1, fig. 3); East Java, Tulungagung, Popoh; 8°16′ S, 111°48′ E; B. Dharma leg.; MZB 21272.

Description

SHELL (Fig. 86; Tables 3–4). Conical, with 5.5 slightly convex whorls; protoconch almost smooth; teleoconch with fine, irregular wrinkles; apical side with indistinct incised spiral lines, umbilical side with more distinct spiral lines; scaly processes not observed; tuberculate around umbilicus; whitish with a reddish-brown band at periphery; body whorl angular; aperture oval; upper insertion of peristome descending; peristome expanded, reflexed and slightly thickened; umbilicus slightly eccentric, moderately wide, comprising 18% of shell diameter, hardly obscured by columellar edge.

GENITALIA. Unknown.

Remarks

Landouria dharmai sp. nov. differs from L. ciliocincta (Figs 83–84), in which it was included by Dharma (2015), in the smaller (D 9.9 mm vs 12.4–15.6 mm in L. ciliocincta), higher conical (D/H 1.39 vs 1.86– 2.12 in L. ciliocincta), less sharply keeled shell with a narrower umbilicus (U/D 0.18 vs 0.24–0.30 in L. ciliocincta).

Distribution

Landouria dharmai sp. nov. is endemic to Tulungagung Regency in East Java (Fig. 55).