Published March 21, 2024 | Version v1
Taxonomic treatment Open

Cochlostoma (Turritus) patulum Cochl.

  • 1. Per Ligont 1, 33070 Budoia, Italy.
  • 2. Naturalis Biodiversity Center, Darwinweg 2, 2333 CR Leiden, the Netherlands.
  • 3. Naturalis Biodiversity Center, Darwinweg 2, 2333 CR Leiden, the Netherlands. & Taxon Expeditions, Rembrandtstraat 20, 2311 VW Leiden, the Netherlands.
  • 4. WWF Hungary, Álmos vezér útja 69 / A, 1141 Budapest, Hungary.
  • 5. Central Research Laboratories, Burgring 7, 1010, Vienna, Austria; Department of Evolutionary Biology, University of Vienna, Djerassiplatz 1, 1030, Vienna, Austria.
  • 6. Naturalis Biodiversity Center, P. O. Box 9517, 2300 RA Leiden, the Netherlands.

Description

Cochlostoma (Turritus) patulum (Draparnaud, 1801)

Figs 14 (red dots), 15E, 19–20

Cyclostoma patulum Draparnaud, 1801: 39.

Lectotype (here designated)

FRANCE • probably ♀; Hérault, Montpellier; “ Cyclostoma patulum Coll. Draparnaud 1820 XXVI /13” and “ Cochlostoma patulum (Drap.) Typus von Draparnaud!”; NHMW 14710/1.

Other specimens

FRANCE • 2- Cirque d’Archiane; 44.7590° N, 5.4186° E; 1975; RMNH leg.; RMNH117454 • 3- Cassis; 43.2157° N, 5.5389° E; 2009; Pocaterra leg.; EZ0457 • 4- Cirque de Navacelles; 43.8945° N, 3.5115° E; 1978; de Winter leg.; A. de Winter-0882 • 5- Gorges de Galamus; 42.8402° N, 2.4794° E; 1987; de Winter leg.; A. de Winter5601.

Type locality

FRANCE • Hérault, Montpellier (“H.a.F.M.” in the original description =France meridionale. Wagner (1897) wrote: “Ich beurtheile diese Art nach Originalexemplaren Draparnaud’s von Montpellier in Südfrankreich, welche sich im k. k. naturhistorischen Hofmuseum in Wien befinden”.)

Description

SHELL. Closely spaced riblets on last part of protoconch. Teleoconch spotless, with strong ribs, slightly weaker and irregularly spaced approaching aperture. Strong and developed lip with columellar lobe abruptly inwardly curved to cover umbilicus.

MEASUREMENTS. 4 ♀♀: whorls= 7.2–8.1, H = 7.4–8.5 mm, H/W= 2.41–2.7, roundness= 0.12–0.13, ribs incl.= 61–64°, apert. incl.= 12–15°, ribs/mm 1 st wh.= 10–15, ribs/mm 4 th wh.= 11–13.

FEMALE GENITAL ORGANS. As in C. (T.) stussineri.

Remarks

Cochlostoma (T.) patulum from Cirque D’Archiane and from Luberon (GENBANK, GQ370416) do not cluster in the 16S analysis as do conspecific samples belonging to other species. The p-distance between them is 1.5%, higher than the one (1.2–1.3%) found between patulum and stussineri. For this reason, it seems appropriate to better define the type locality, here restricted to Montpellier (France). Maybe ‘ancient’ DNA could be amplified from the lectotype, or a specimen of the same sample, to stabilize the taxonomy of the French Turritus.

Notes

Published as part of Zallot, Enrico, Kamchev, Panche, Schilthuizen, Menno, Fehér, Zoltán, Mattia, Willy De & Gittenberger, Edmund, 2024, Cochlostoma Jan, 1830 revised: an overview of the subgenus Turritus Westerlund, 1883 and its species (Caenogastropoda, Cochlostomatidae), pp. 1-163 in European Journal of Taxonomy 927 on pages 22-26, DOI: 10.5852/ejt.2024.927.2475, http://zenodo.org/record/10853688

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Linked records

Additional details

Biodiversity

References

  • Draparnaud J. P. R. 1801. Tableau des mollusques terrestres et fluviatiles de la France. Renaud, Montpellier and Bossange, Masson and Besson, Paris. https: // doi. org / 10.5962 / bhl. title. 13180
  • Wagner A. J. 1906. Neue Formen und Fundorte der Genera Pomatias Studer und Auritus Westerlund. Nachrichtsblatt der deutschen malakozoologischen Gesellschaft 38 (2 - 3): 92 - 101, 121 - 140.
  • Wagner A. J. 1897. Monographie der Gattung Pomatias Studer. Denkschriften der kaiserlichen Akademie der Wissenschaften, mathematisch-naturwissenschaftliche Klasse 64: 565 - 632. https: // doi. org / 10.5962 / bhl. title. 10792