Rhabdoena gostelii, Gümüş & Neubert, 2012
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publication ID |
https://dx.doi.org/10.3897/zookeys.171.2273 |
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publication LSID |
lsid:zoobank.org:pub:91A0AA56-4107-4E29-B847-BA6924FB7BC8 |
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persistent identifier |
https://treatment.plazi.org/id/9CA63D44-A467-418D-BD75-7BC254948A12 |
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taxon LSID |
lsid:zoobank.org:act:9CA63D44-A467-418D-BD75-7BC254948A12 |
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treatment provided by |
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scientific name |
Rhabdoena gostelii |
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sp. n. |
Rhabdoena gostelii ZBK sp. n. Fig. 21 View Figures 13–23
Type specimens.
Holotype NMBE 33331, Vil. Erzincan, Kemaliye, Dilli Deresi, 39.315°N, 38.44°E, 870 m alt.,10.7.2005, leg. B. A. Gümüş; paratype NMBE 33332/1, Vil. Erzincan, Kemaliye, Muşaga village (= Kocaçimen 39.296°N, 38.54°E), 02.08.1987, leg. N. Kazancı, ex coll. Neubert.
Diagnosis.
Shell large, protoconch dome-shaped, sculpture of fine irregularly arranged riblets, apertural rims slightly inclined, connected by a weak parietal callus.
Description.
Shell large; protoconch of 2.5 whorls, smooth, dome-shaped; shell colour basically creamy whitish, with a few irregularly scattered brownish mottles; shell elongate conical with a semi-ovate aperture; whorls of the teleoconch almost flat, increasing regularly, suture of medium depth; surface of the teleoconch almost smooth, with a sculpture of fine irregularly arranged riblets on the teleoconch; apertural rims sharp, reinforced by a very weak labial callus, somewhat reflected; a shallow angularis indicated on the parietum, apertural rims slightly inclined, connected by a weak parietal callus; columellar rim of the aperture widely reflected; umbilicus slit-like open, elongate.
Measurements.
Holotype: H = 20.96; D = 8.56; PH = 7.14; PD = 5.4; W = 8.5.
Etymology.
This new species is dedicated to our dear friend, the late Dr. Margret Gosteli from the Natural History Museum Berne, Switzerland.
Distribution.
This species is only known from a very small range in the area of Kemaliye.
Remarks and differential diagnosis.
This new species is currently confined to Rhabdoena because of the overlap of conchological characters with other species of this subgenus. The new species differs from all other known species by its size (it is the largest species in the subgenus). The conchologically closest taxon is Rhabdoena cosensis (Reeve, 1849) ( Fig. 23 View Figures 13–23 ), which has a more conical shell, a more mammillate protoconch, a more open umbilicus, and a much smaller last whorl. The other Turkish species, Rhabdoena armenica ( Nägele, 1903) ( Fig. 22 View Figures 13–23 ), is much smaller, has a widely open umbilicus, and a more rigid mode of ribbing. The latter species is known from two lots in the collection of SMF only, and has not been found back until now. The second lot in SMF (not illustrated here) is said to originate from Tokat (coll. Nägele). Probably, this species is a local endemic species with a restricted distribution area like Rhabdoena gostelii sp. n.
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