Revision of the land snail genus Landouria Godwin-Austen, 1918 (Gastropoda, Camaenidae) from Java
Author
Nurinsiyah, Ayu Savitri
5AFBFEFB-B243-49CC-AACC-248B2F007BC8
Museum Zoologicum Bogoriense, Research Center for Biology, Indonesian Institute of Science, Cibinong, West Java, Indonesia.
ayu_nurinsiyah@yahoo.com & ayus002@lipi.go.id
Author
Neiber, Marco T.
8F6006F5-D880-4841-AC32-B97E18D7BB5C
Zoological Museum, Center of Natural History, University of Hamburg, Martin-Luther-King-Platz 3, 20146 Hamburg, Germany
mneiber@hotmail.de
Author
Hausdorf, Bernhard
FEDE92C0-108D-4315-8F86-9F2CFF1CB906
Zoological Museum, Center of Natural History, University of Hamburg, Martin-Luther-King-Platz 3, 20146 Hamburg, Germany.
hausdorf@zoologie.uni-hamburg.de
text
European Journal of Taxonomy
2019
2019-05-21
526
1
73
journal article
10.5852/ejt.2019.526
2da65c0a-9c48-43f5-ada3-e088de28dec1
2118-9773
3152217
3FFC527D-E9CA-4D9F-BF59-076FA60171AC
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).