Descriptions of new and little-known land snail taxa from Turkey, and establishment of a new genus (Gastropoda, Pulmonata: Lauriidae, Enidae and Vitrinidae)
Author
Ruud, A. Bank
Author
Henk P. M. G Menkhorst
Author
Eike Neubert
text
Basteria
2016
80
1
5
30
journal article
10.5281/zenodo.439745
e7d164f6-b22c-4120-b1f6-6464cfc6de0b
00056219
439745
Amphiscopus moolenbeeki
spec. nov.
(
Fig. 14
)
Type locality & type material. –
Turkey
,
Vilayet Tokat
,
Reşadiye,
8 km
towards Çekerek
,
770 m
(
40.1523°N
35.6320°E
),
H.P.M.G. Menkhorst
leg.,
19.vii.1990
.
Holotype
NMBE 544668
,
paratypes NMBE 544669/2, HMK/>50, RBA/3, RMNH/3, ZMH/3.
Diagnosis. – A large, highly turreted
Amphiscopus
species without a parietalis or
palatalis
superior.
Description. – Shell dextral, highly turreted, with an open, slit-like umbilicus. The 10.4-13.2 whorls are convex with a moderately deep suture. Teleoconch with widely spaced, fine, oblique striae; there are no spiral striae. Shell solid, not translucent, glossy, uniformly horny yellow coloured, with a prominent whitish band behind the peristome. Peristome not or hardly reflected (with the exception of the columellar part), thickened by a labial callus, the columellar and palatal insertion connected by a clearly visible callus which is quite thickened near the columellar peristome. The edge of the palatal insertion forms a wide arc. The dot-like to tear-like
subangularis
is connected with the palatal peristome by a thin callus. There is no parietalis, spiralis,
palatalis
superior, infrapalatalis, basalis or columellaris. The columellar ledge reaches halfway or above the middle of the columellar side of the aperture.
Figs 14-15
. New
Amphiscopus
taxa from Turkey.
14
,
Amphiscopus moolenbeeki
spec. nov.
, holotype NMBE 544668 (H = 13.8 mm), Turkey, Vil. Tokat, Reşadiye, 8 km towards Çekerek.
15
,
Amphiscopus sturmii marmoratus
subspec. nov.
, holotype NMBE 544670 (H = 8.2 mm), Turkey, Vil. Kütahya, Örencik, western part. All photographs Bochud & Neubert, × 8.
Measurements (n = 8). – H = 10.0-14.4 (mean 12.3); LWH = 4.0-4.8 (mean 4.3); MH = 2.6-2.9 (mean 2.7); LWD = 3.0-3.3 (mean 3.1); LWM = 2.9-3.3 (mean 3.1); MD = 1.9-2.2 (mean 2.1); NW = 10.4-13.2 (mean 11.9).
Localities. – Vilayet Tokat: type locality (see above); Reşadiye, 7.5 km towards Çekerek (HMK/1).
Derivatio nominis. - Named after our friend Rob(ert) Moolenbeek, who made numerous important malacological contributions and who curated the molluscan collection of the formerly Zoologisch Museum Amsterdam for decades (now integrated in the Naturalis Biodiversity Center, Leiden).
Remarks. – This taxon has been assigned to
Amphiscopus
because of the overall shape of the shell, the small aperture and the thickened peristome. So far, only the species
sturmii
and
substurmii
has been assigned
Amphiscopus
; therefore
moolenbeeki
is now the third known
Amphiscopus
species. It can be easily recognized from
A. sturmii
and
A. substurmii
by the characters mentioned in the diagnosis.