Revision of the stygobiont gastropod genera Plagigeyeria Tomlin, 1930 and Travunijana Grego & Glöer, 2019 (Mollusca; Gastropoda; Moitessieriidae and Hydrobiidae) in Hercegovina and adjacent regions
Author
Grego, Jozef
44C83AAB-CF4E-46E8-8146-DFBADA150AB6
Horná Mičiná, SK- 97401 Banská Bystrica, Slovakia.
jozef.grego@gmail.com
text
European Journal of Taxonomy
2020
2020-07-27
691
1
56
journal article
21415
10.5852/ejt.2020.691
918d86bb-f11d-414e-9c1e-21ec17737792
3961840
CC8487E0-169D-4B32-A2AB-F9B34DFB3F3B
Genus
Plagigeyeria
Tomlin, 1930
Type
species:
Geyeria plagiostoma
A. J.
Wagner, 1914
Diagnosis
The genus is represented by solid shells with rather thick walls and expanded, outward reflexed labrum with mostly sinuated lateral profile and sinuated columellar margin, by teleoconch surface covered with weaker or coarser, sometimes sinuated regular axial ribs diagonally cross-connected by weaker or coarser crenate spiral lamellae, by cancellated nepionic whorl covered by fine, very close-set axial riblets cross-sected with closely set spiral ribs, by protoconch surface covered by fine irregularly crenated spiral riblets with crenated or malleated inter-rib spaces and malleated nucleus.
Fig. 2.
Photos of studied localities in Hercegovina.
A
. Konjic. Ljuta spring (LT of
Plagigeyeria ljutaensis
sp. nov.
).
B
. Blagaj, spring Buna (
P. mostarensis
var.).
C
. Konjic, spring at left bank of Ljuta Rivulet (LT of
P. konjicensis
sp. nov.
).
D
. Donja Jablanica, Komadinovo Vrelo (LT of
P. erossi
sp. nov.
).
E
. Vučija, Sušicka Jama (
P
. cf.
lewarnei
sp. nov.
).
F
. Trebinje, Gorica, spring Vruljak 1 (
P. robusta
and
P. lewarnei
sp. nov.
). Photos: Jozef Grego, Dorottya Angyal and Mário Olšavský.
Fig. 3.
Photos of studied localities in Hercegovina.
A
. Dabarsko Polje, Sušicka Peć cave near spring Vrijeka (LT of
Plagigeyeria reischuetzorum
sp. nov.
and
Travunijana gloeri
sp. nov.
).
B
. Tihaljina, spring Tihaljina in Peć Mlini Cave (
Belgrandia torifera
Schütt, 1961
).
C
. Hodbina, spring Bunica (likely LT of
P. mostarensis
Kuščer, 1933
,
P. ovalis
Kuščer, 1933
).
D
. Studenci, spring Kajtazovina (LT of
P. olsavskyi
sp. nov.
)
E
. Vitina, spring Vrioštica (LT of
P. vriosticaensis
sp. nov.
and
P. ozimeci
sp. nov.
)
F
. Lukende, Jakšenica, Vrelo Jakšenica (LT of
P. angyaldorkae
sp. nov.
) Photos: Jozef Grego, Dorottya Angyal and Mário Olšavský.
Fig. 4.
Photos of studied localities in Hercegovina.
A
. Studenci, Vrilo Guljevina (LT of
Plagigeyeria jakabi
sp. nov.
).
B
. Široki Brijeg, Bijelo Vrelo – Lištica 2 (LT of
P. listicaensis
sp. nov.
)
C
. Donji Prolog, spring Mali Prokop (
P. olsavskyi
sp. nov.
). Photos: Jozef Grego, Dorottya Angyal and Mário Olšavský.
Anatomy
The anatomy of
Plagigeyeria montenegrina
Bole, 1961
from Obodska Pećina, Rijeka Crnojevića,
Montenegro
was described by
Bole 1970
(p. 105–106, fig. 7C).
Distribution
The distribution of
Plagigeyeria
in the studied area represents a hotspot within the Neretva and South
Bosnia
River drainage basins ranging from Ilidža near Sarajevo southwards to Mostar, Tihaljina and Trebinje (
Fig. 18
). The closest adjacent distribution of the genus represents a second distribution hotspot at the basin of river Zeta, Kotor Bay and Skadar Lake Basin (as a part of Drin River drainage basin). A third smaller distribution area is isolated in northwest
Kosovo
(Peja) and Northeast
Albania
(Krumë) in the Drin drainage basin. Single species are known from, west and east
Serbia
,
Bulgaria
, as well as from South
Albania
. The single species from
France
likely represents a different genus, as well as the two species from Western Greater Caucasus assigned to
Plagigeyeria
(
Starobogatov 1962
)
, which belong to a different unrelated new genus (Grego
et al
. in press).
Remarks
The current understanding of the genus gathers many similar morphotypes from a very wide geographical range from
France
to southwestern Caucasus. Herein we focus on the species of
Plagigeyeria
from the studied area only, sharing the general shell morphology features with the
type
species so their assignment to the genus is convincing.