Published March 21, 2024 | Version v1
Taxonomic treatment Open

Cochlostoma (Turritus) stossichi 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 (T.) stossichi (Hirc, 1881)

Figs 73F, 82 (purple dots), 87–88

Pomatias stossichi Hirc, 1881: 522.

Syntypes

CROATIA • probably ♂; “ Pomatias Stossichii, Clessin, 1880.XIII.33. Orig. der Hirc’schen arbeit, Ponikve bei Buccari ”; NHMWno number • “ nanus West. var. stossichi Hirc, Buccari bei Fiume Croatien ”; Stossich leg.; Sep. 1882; ZMB 170.256,

Other specimens

CROATIA • 2- 2 km NNW of Meja; 45.3070° N, 14.5871° E; 1999; De Mattia leg.; WdM 1240.

Type locality

CROATIA • 1- Primorje-Gorski Kotar County, Ponikve, Bakar.

Description

SHELL. Closely spaced ribletss on last part of protonconch. Teleoconch spotless, ribs rounded, irregular in size and shape and not prominent, disappearing toward aperture. Moderately developed lip with slightly bent columellar lobe hiding almost completely umbilicus.

MEASUREMENTS. 5 ♀♀: whorls=6.8–8.1, H = 6–7.3 mm, H/W=2.14–2.64, roundness =0.09–0.15, ribs incl.= 48–56°, apert. incl.= 21–24°, ribs/mm 1 st wh.= 9–9, ribs/mm 4 th wh.=8–14.

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

Remarks

The species differs from C. (T.) elegans because it has either a hidden umbilicus or a narrow slit behind a barely curved columellar lobe (umbilicus wide and well visible in elegans). Moreover, the ribbing is weaker in this species.

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 99-100, DOI: 10.5852/ejt.2024.927.2475, http://zenodo.org/record/10853688

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Linked records

Additional details

References

  • Hirc D. 1881. Die Mollusken-Fauna des liburnischen Karstes. Verhandlungen der kaiserlich-koniglichen Zoologisch-Botanischen Gesellschaft in Wien 30: 519 - 530.