Corresponding author: Ivaylo Kanev Dedov (
Academic editor: E. Neubert
Two species of Clausiliidaeare described as new to science.
Until recently, only one species of the genus
The genus
Most of the material was collected by the author in 2009 and 2010 from the Nidzhe and Baba Mountains, Republic of Macedonia. The first specimens of
Republic of Macedonia, Nidzhe Mountains, Belo Grotlo peak,
holotype SMF 336340; paratypes: SMF 336341/2 specimens, NMNHS
The new species differs from the two subspecies of
shell small, spindle-shaped; shell colour brownish; suture deep; teleoconch striated, finely ribbed on the last whorls of the shell; neck with pronounced basal keel; aperture pear-shaped, in some specimens a slight palatal thickening present situated in parallel to its edge; well developed basal canal, often with a short basalis on its left margin; superior lamella connected with spiralis through a slight depression in the contact zone (or both situated very close, not connected); inferior lamella (columellaris) well developed running steeply nearby parietal side; lunella in dorsal position, sometimes reduced to a pale thickening or short straight plica; principal plica well developed; upper palatalis present, very short; subcolumellar lamella long and visible from outside the aperture, often forming part of the right margin of the basal canal; clausilium partly visible from outside the aperture, oval-orthogonal, distally with a weak edge.
This species is named “
This species occurs on rocky alpine meadows above the timber line, on limestone rocks and in their crevices and under stones.
Measurements (in mm) of
H | D | W | We | HP | DP | R1 | superior+spiralis | basalis | |
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1 | 10.56 | 2.64 | 9 | 2.5 | 2.4 | 1.68 | 12 | connected | lack |
2 | 9.36 | 2.52 | 8.5 | 2 | 2.28 | 1.68 | 10 | separated | present |
3 | 9.48 | 2.64 | 9 | 2 | 2.52 | 1.56 | 9 | separated | lack |
4 | 10.44 | 2.64 | 10 | 2.5 | 2.4 | 1.56 | 8 | connected | present |
5 | 9.84 | 2.52 | 9 | 2 | 2.4 | 1.68 | 9 | connected | present |
6 | 9.12 | 2.4 | 9 | 2 | 2.04 | 1.56 | 8 | separated | lack |
7 | 9.36 | 2.64 | 8.5 | 2.5 | 2.52 | 1.56 | 11 | connected | lack |
8 | 9.6 | 2.52 | 9 | 2.5 | 2.4 | 1.68 | 9 | connected | present |
9 | 8.88 | 2.52 | 9 | 2 | 2.16 | 1.44 | 8 | separated | lack |
10 | 9 | 2.52 | 9 | 2 | 2.28 | 1.56 | 6 | connected | lack |
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1(4) | Subcolumellaris ends at the level of the lunellar system. Palatal callus missing. | |
2(3) | Colour of the shells more yellowish-greenish, basal keel finer, R2 7–18 |
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3(2) | Colour of the shells deeper brown, basal keel stronger, R2 21 |
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4(1) | Subcolumellaris running parallel to basal canal. Palatal callus present. | |
5(6) | Palatal callus pale or often missing in some extreme forms, basalis shorter or missing |
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6(5) | Palatal callus well developed, basalis longer |
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Genus
Republic of Macedonia, Nidzhe Mountains, Belo Grotlo peak, type locality of
Republic of Macedonia, Baba (= Pelister) Mountains near Kopanke hut,
Republic of Macedonia, Pelister (= Baba) Mountains, Palisnopje area, 1450 m a.s.l.,
holotype SMF 336343, paratypes (n = 13 specimens) SMF 336344/2 specimens; NMNHS/2 specimens
This species differs from
shell relatively small, spindle shaped, yellow-brownish coloured; whorls 8.5
This species is named after the Bulgarian arachnologist Dr. Stoyan Lazarov-Panagyrsky, B. A. S., Institute of Zoology, who was the first to collect this species.
This species occurs in the
The first species of genus
Measurements (mm) of the
H | D | W | We | HP | DP | R | superior+spiralis | hook shape of clausilium | |
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1 | 9.94 | 3.00 | 9 | 2.5 | 2.8 | 2.2 | 38 | connected | prominent |
2 | 9.45 | 3.1 | 9 | 2.5 | 2.6 | 2.2 | 44 | separated | broken off |
3 | 10.43 | 3.2 | 9 | 2.5 | 2.95 | 2.45 | 48 | separated | not visible |
4 | 9.03 | 3.1 | 8 | 2 | 2.85 | 2.05 | 54 | separated | weakly prominent |
5 | 10.43 | 3.15 | 9 | 2.5 | 2.85 | 2.35 | 48 | connected | broken off |
6 | 10.64 | 3.2 | 9.5 | 2.5 | 2.9 | 2.2 | 45 | connected | prominent |
7 | 10.99 | 3.25 | 9.5 | 2.5 | 3 | 2.2 | 44 | separated | weakly prominent |
8 | 10.07 | 3.05 | 9 | 2 | 2.95 | 2.1 | 46 | separated | broken off |
9 | 9.73 | 3.3 | 9 | 2 | 3 | 2.3 | 45 | separated | prominent |
10 | 9.24 | 2.95 | 8.5 | 2.5 | 2.9 | 2.1 | 42 | separated | weakly prominent |
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I want to thank Dr. Stoyan Lazarov, BAS, Institute of Zoology, who collected the first specimens of